The prime numbers, which only have themselves and 1 as factors, are in bold.
The factors of 1 are 1.
The factors of 2 are 1 and 2.
The factors of 3 are 1 and 3.
The factors of 4 are 1, 2, and 4.
The factors of 5 are 1 and 5.
The factors of 6 are 1, 2, 3, and 6.
The factors of 7 are 1 and 7.
The factors of 8 are 1, 2, 4, and 8.
The factors of 9 are 1, 3, and 9.
The factors of 10 are 1, 2, 5, and 10.
The factors of 11 are 1 and 11.
The factors of 12 are 1, 2, 3, 4, 6, and 12.
The factors of 13 are 1 and 13.
The factors of 14 are 1, 2, 7, and 14.
The factors of 15 are 1, 3, 5, and 15.
The factors of 16 are 1, 2, 4, 8, and 16.
The factors of 17 are 1 and 17.
The factors of 18 are 1, 2, 3, 6, 9, and 18.
The factors of 19 are 1 and 19.
The factors of 20 are 1, 2, 4, 5, 10, and 20.
The factors of 21 are 1, 3, 7, and 21.
The factors of 22 are 1, 2, 11, and 22.
The factors of 23 are 1 and 23.
The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.
The factors of 25 are 1, 5, and 25.
The factors of 26 are 1, 2, 13, and 26.
The factors of 27 are 1, 3, 9, and 27.
The factors of 28 are 1, 2, 4, 7, 14, and 28.
The factors of 29 are 1 and 29.
The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.
The factors of 31 are 1 and 31.
The factors of 32 are 1, 2, 4, 8, 16, and 32.
The factors of 33 are 1, 3, 11, and 33.
The factors of 34 are 1, 2, 17, and 34.
The factors of 35 are 1, 5, 7, and 35.
The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.
The factors of 37 are 1 and 37.
The factors of 38 are 1, 2, 19, and 38.
The factors of 39 are 1, 3, 13, and 39.
The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40.
The factors of 41 are 1 and 41.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.
The factors of 43 are 1 and 43.
The factors of 44 are 1, 2, 4, 11, 22, and 44.
The factors of 45 are 1, 3, 5, 9, 15, and 45.
The factors of 46 are 1, 2, 23, and 46.
The factors of 47 are 1 and 47.
The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48.
The factors of 49 are 1, 7, and 49.
The factors of 50 are 1, 2, 5, 10, 25, and 50.
The factors of 51 are 1, 3, 17, and 51.
The factors of 52 are 1, 2, 4, 13, 26, and 52.
The factors of 53 are 1 and 53.
The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54.
The factors of 55 are 1, 5, 11, and 55.
The factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56.
The factors of 57 are 1, 3, 19, and 57.
The factors of 58 are 1, 2, 29, and 58.
The factors of 59 are 1 and 59.
The factors of 60 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.
The factors of 61 are 1 and 61.
The factors of 62 are 1, 2, 31, and 62.
The factors of 63 are 1, 3, 7, 9, 21, and 63.
The factors of 64 are 1, 2, 4, 8, 16, 32, and 64.
The factors of 65 are 1, 5, 13, and 65.
The factors of 66 are 1, 2, 3, 6, 11, 22, 33, and 66.
The factors of 67 are 1 and 67.
The factors of 68 are 1, 2, 4, 17, 34, and 68.
The factors of 69 are 1, 3, 23, and 69.
The factors of 70 are 1, 2, 5, 7, 10, 14, 35, and 70.
The factors of 71 are 1 and 71.
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72.
The factors of 73 are 1 and 73.
The factors of 74 are 1, 2, 37, and 74.
The factors of 75 are 1, 3, 5, 15, 25, and 75.
The factors of 76 are 1, 2, 4, 19, 38, and 76.
The factors of 77 are 1, 7, 11, and 77.
The factors of 78 are 1, 2, 3, 6, 13, 26, 39, and 78.
The factors of 79 are 1 and 79.
The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80.
The factors of 81 are 1, 3, 9, 27, and 81.
The factors of 82 are 1, 2, 41, and 82.
The factors of 83 are 1 and 83.
The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.
The factors of 85 are 1, 5, 17, and 85.
The factors of 86 are 1, 2, 43, and 86.
The factors of 87 are 1, 3, 29, and 87.
The factors of 88 are 1, 2, 4, 8, 11, 22, 44, and 88.
The factors of 89 are 1 and 89.
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90.
The factors of 91 are 1, 7, 13, and 91.
The factors of 92 are 1, 2, 4, 23, 46, and 92.
The factors of 93 are 1, 3, 31, and 93.
The factors of 94 are 1, 2, 47, and 94.
The factors of 95 are 1, 5, 19, and 95.
The factors of 96 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, and 96.
The factors of 97 are 1 and 97.
The factors of 98 are 1, 2, 7, 14, 49, and 98.
The factors of 99 are 1, 3, 9, 11, 33, and 99.
The factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, and 100.
The factors of 101 are 1 and 101.
The factors of 102 are 1, 2, 3, 6, 17, 34, 51, and 102.
The factors of 103 are 1 and 103.
The factors of 104 are 1, 2, 4, 8, 13, 26, 52, and 104.
The factors of 105 are 1, 3, 5, 7, 15, 21, 35, and 105.
The factors of 106 are 1, 2, 53, and 106.
The factors of 107 are 1 and 107.
The factors of 108 are 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, and 108.
The factors of 109 are 1 and 109.
The factors of 110 are 1, 2, 5, 10, 11, 22, 55, and 110.
The factors of 111 are 1, 3, 37, and 111.
The factors of 112 are 1, 2, 4, 7, 8, 14, 16, 28, 56, and 112.
The factors of 113 are 1 and 113.
The factors of 114 are 1, 2, 3, 6, 19, 38, 57, and 114.
The factors of 115 are 1, 5, 23, and 115.
The factors of 116 are 1, 2, 4, 29, 58, and 116.
The factors of 117 are 1, 3, 9, 13, 39, and 117.
The factors of 118 are 1, 2, 59, and 118.
The factors of 119 are 1, 7, 17, and 119.
The factors of 120 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120.
The factors of 121 are 1, 11, and 121.
The factors of 122 are 1, 2, 61, and 122.
The factors of 123 are 1, 3, 41, and 123.
The factors of 124 are 1, 2, 4, 31, 62, and 124.
The factors of 125 are 1, 5, 25, and 125.
The factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, and 126
The factors of 127 are 1 and 127.
The factors of 128 are 1, 2, 4, 8, 16, 32, 64, and 128.
The factors of 129 are 1, 3, 43, and 129.
The factors of 130 are 1, 2, 5, 10, 13, 26, 65, and 130.
The factors of 131 are 1 and 131.
The factors of 132 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, and 132.
The factors of 133 are 1, 7, 19, and 133.
The factors of 134 are 1, 2, 67, and 134.
The factors of 135 are 1, 3, 5, 9, 15, 27, 45, and 135.
The factors of 136 are 1, 2, 4, 8, 17, 34, 68, and 136.
The factors of 137 are 1 and 137.
The factors of 138 are 1, 2, 3, 6, 23, 46, 69, and 138.
The factors of 139 are 1 and 139.
The factors of 140 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, and 140.
The factors of 141 are 1, 3, 47, and 141.
The factors of 142 are 1, 2, 71, and 142.
The factors of 143 are 1, 11, 13, and 143.
The factors of 144 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, and 144.
The factors of 145 are 1, 5, 29, and 145.
The factors of 146 are 1, 2, 73, and 146.
The factors of 147 are 1, 3, 7, 21, 49, and 147.
The factors of 148 are 1, 2, 4, 37, 74, and 148.
The factors of 149 and 1 and 149.
The factors of 150 are 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, and 150.
The factors of 151 are 1 and 151.
The factors of 152 are 1, 2, 4, 8, 19, 38, 76, and 152.
The factors of 153 are 1, 3, 9, 17, 51, and 153.
The factors of 154 are 1, 2, 7, 11, 14, 22, 77, and 154.
The factors of 155 are 1, 5, 31, and 155.
The factors of 156 are 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, and 156.
The factors of 157 are 1 and 157.
The factors of 158 are 1, 2, 79, and 158.
The factors of 159 are 1, 3, 53, and 159.
The factors of 160 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, and 160.
The factors of 161 are 1, 7, 23, and 161.
The factors of 162 are 1, 2, 3, 6, 9, 18, 27, 54, 81, and 162.
The factors of 163 are 1 and 163.
The factors of 164 are 1, 2, 4, 41, 82, and 164.
The factors of 165 are 1, 3, 5, 11, 15, 33, 55, and 165.
The factors of 166 are 1, 2, 83, and 166.
The factors of 167 are 1 and 167.
The factors of 168 are 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, and 168.
The factors of 169 are 1, 13, and 169.
The factors of 170 are 1, 2, 5, 10, 17, 34, 85, and 170.
The factors of 171 are 1, 3, 9, 19, 57, and 171.
The factors of 172 are 1, 2, 4, 43, 86, and 172.
The factors of 173 are 1 and 173.
The factors of 174 are 1, 2, 3, 6, 29, 58, 87, and 174.
The factors of 175 are 1, 5, 7, 25, 35, and 175.
The factors of 176 are 1, 2, 4, 8, 11, 16, 22, 44, 88, and 176.
The factors of 177 are 1, 3, 59, and 177.
The factors of 178 are 1, 2, 89, and 178.
The factors of 179 are 1 and 179.
The factors of 180 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, and 180.
The factors of 181 are 1 and 181.
The factors of 182 are 1, 2, 7, 13, 14, 26, 91, and 182.
The factors of 183 are 1, 3, 61, and 183.
The factors of 184 are 1, 2, 4, 8, 23, 46, 92, and 184.
The factors of 185 are 1, 5, 37, and 185.
The factors of 186 are 1, 2, 3, 6, 31, 62, 93, and 186.
The factors of 187 are 1, 11, 17, and 187.
The factors of 188 are 1, 2, 4, 47, 94, and 188.
The factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189.
The factors of 190 are 1, 2, 5, 10, 19, 38, 95, and 190.
The factors of 191 are 1 and 191.
The factors of 192 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, and 192.
The factors of 193 are 1 and 193.
The factors of 194 are 1, 2, 97, and 194.
The factors of 195 are 1, 3, 5, 13, 15, 39, 65, and 195.
The factors of 196 are 1, 2, 4, 7, 14, 28, 49, 98, and 196.
The factors of 197 are 1 and 197.
The factors of 198 are 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, and 198.
The factors of 199 are 1 and 199.
The factors of 200 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200
1: 1
2: 1, 2
3: 1, 3
4: 1, 2, 4
5: 1, 5
6: 1, 2, 3, 6
7: 1, 7
8: 1, 2, 4, 8
9: 1, 3, 9
10: 1, 2, 5, 10
11: 1, 11
12: 1, 2, 3, 4, 6, 12
13: 1, 13
14: 1, 2, 7, 14
15: 1, 3, 5, 15
16: 1, 2, 4, 8, 16
17: 1, 17
18: 1, 2, 3, 6, 9, 18
19: 1, 19
20: 1, 2, 4, 5, 10, 20
21: 1, 3, 7, 21
22: 1, 2, 11, 22
23: 1, 23
24: 1, 2, 3, 4, 6, 8, 12, 24
25: 1, 5, 25
26: 1, 2, 13, 26
27: 1, 3, 9, 27
28: 1, 2, 4, 7, 14, 28
29: 1, 29
30: 1, 2, 3, 5, 6, 10, 15, 30
31: 1, 31
32: 1, 2, 4, 8, 16, 32
33: 1, 3, 11, 33
34: 1, 2, 17, 34
35: 1, 5, 7, 35
36: 1, 2, 3, 4, 6, 9, 12, 18, 36
37: 1, 37
38: 1, 2, 19, 38
39: 1, 3, 13, 39
40: 1, 2, 4, 5, 8, 10, 20, 40
41: 1, 41
42: 1, 2, 3, 6, 7, 14, 21, 42
43: 1, 43
44: 1, 2, 4, 11, 22, 44
45: 1, 3, 5, 9, 15, 45
46: 1, 2, 23, 46
47: 1, 47
48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
49: 1, 7, 49
50: 1, 2, 5, 10, 25, 50
51: 1, 3, 17, 51
52: 1, 2, 4, 13, 26, 52
53: 1, 53
54: 1, 2, 3, 6, 9, 18, 27, 54
55: 1, 5, 11, 55
56: 1, 2, 4, 7, 8, 14, 28, 56
57: 1, 3, 19, 57
58: 1, 2, 29, 58
59: 1, 59
60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
61: 1, 61
62: 1, 2, 31, 62
63: 1, 3, 7, 9, 21, 63
64: 1, 2, 4, 8, 16, 32, 64
65: 1, 5, 13, 65
66: 1, 2, 3, 6, 11, 22, 33, 66
67: 1, 67
68: 1, 2, 4, 17, 34, 68
69: 1, 3, 23, 69
70: 1, 2, 5, 7, 10, 14, 35, 70
71: 1, 71
72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
73: 1, 73
74: 1, 2, 37, 74
75: 1, 3, 5, 15, 25, 75
76: 1, 2, 4, 19, 38, 76
77: 1, 7, 11, 77
78: 1, 2, 3, 6, 13, 26, 39, 78
79: 1, 79
80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
81: 1, 3, 9, 27, 81
82: 1, 2, 41, 82
83: 1, 83
84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
85: 1, 5, 17, 85
86: 1, 2, 43, 86
87: 1, 3, 29, 87
88: 1, 2, 4, 8, 11, 22, 44, 88
89: 1, 89
90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
91: 1, 7, 13, 91
92: 1, 2, 4, 23, 46, 92
93: 1, 3, 31, 93
94: 1, 2, 47, 94
95: 1, 5, 19, 95
96: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
97: 1, 97
98: 1, 2, 7, 14, 49, 98
99: 1, 3, 9, 11, 33, 99
100: 1, 2, 4, 5, 10, 20, 25, 50, 100
101: 1, 101
102: 1, 2, 3, 6, 17, 34, 51, 102
103: 1, 103
104: 1, 2, 4, 8, 13, 26, 52, 104
105: 1, 3, 5, 7, 15, 21, 35, 105
106: 1, 2, 53, 106
107: 1, 107
108: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
109: 1, 109
110: 1, 2, 5, 10, 11, 22, 55, 110
111: 1, 3, 37, 111
112: 1, 2, 4, 7, 8, 14, 16, 28, 56, 112
113: 1, 113
114: 1, 2, 3, 6, 19, 38, 57, 114
115: 1, 5, 23, 115
116: 1, 2, 4, 29, 58, 116
117: 1, 3, 9, 13, 39, 117
118: 1, 2, 59, 118
119: 1, 7, 17, 119
120: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
121: 1, 11, 121
122: 1, 2, 61, 122
123: 1, 3, 41, 123
124: 1, 2, 4, 31, 62, 124
125: 1, 5, 25, 125
126: 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
127: 1, 127
128: 1, 2, 4, 8, 16, 32, 64, 128
129: 1, 3, 43, 129
130: 1, 2, 5, 10, 13, 26, 65, 130
131: 1, 131
132: 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132
133: 1, 7, 19, 133
134: 1, 2, 67, 134
135: 1, 3, 5, 9, 15, 27, 45, 135
136: 1, 2, 4, 8, 17, 34, 68, 136
137: 1, 137
138: 1, 2, 3, 6, 23, 46, 69, 138
139: 1, 139
140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
141: 1, 3, 47, 141
142: 1, 2, 71, 142
143: 1, 11, 13, 143
144: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144
145: 1, 5, 29, 145
146: 1, 2, 73, 146
147: 1, 3, 7, 21, 49, 147
148: 1, 2, 4, 37, 74, 148
149: 1, 149
150: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150
151: 1, 151
152: 1, 2, 4, 8, 19, 38, 76, 152
153: 1, 3, 9, 17, 51, 153
154: 1, 2, 7, 11, 14, 22, 77, 154
155: 1, 5, 31, 155
156: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
157: 1, 157
158: 1, 2, 79, 158
159: 1, 3, 53, 159
160: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160
161: 1, 7, 23, 161
162: 1, 2, 3, 6, 9, 18, 27, 54, 81, 162
163: 1, 163
164: 1, 2, 4, 41, 82, 164
165: 1, 3, 5, 11, 15, 33, 55, 165
166: 1, 2, 83, 166
167: 1, 167
168: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
169: 1, 13, 169
170: 1, 2, 5, 10, 17, 34, 85, 170
171: 1, 3, 9, 19, 57, 171
172: 1, 2, 4, 43, 86, 172
173: 1, 173
174: 1, 2, 3, 6, 29, 58, 87, 174
175: 1, 5, 7, 25, 35, 175
176: 1, 2, 4, 8, 11, 16, 22, 44, 88, 176
177: 1, 3, 59, 177
178: 1, 2, 89, 178
179: 1, 179
180: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
181: 1, 181
182: 1, 2, 7, 13, 14, 26, 91, 182
183: 1, 3, 61, 183
184: 1, 2, 4, 8, 23, 46, 92, 184
185: 1, 5, 37, 185
186: 1, 2, 3, 6, 31, 62, 93, 186
187: 1, 11, 17, 187
188: 1, 2, 4, 47, 94, 188
189: 1, 3, 7, 9, 21, 27, 63, 189
190: 1, 2, 5, 10, 19, 38, 95, 190
191: 1, 191
192: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 192
193: 1, 193
194: 1, 2, 97, 194
195: 1, 3, 5, 13, 15, 39, 65, 195
196: 1, 2, 4, 7, 14, 28, 49, 98, 196
197: 1, 197
198: 1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198
199: 1, 199
200: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200
The factors of a number are the integers that can be multiplied together to produce that number. For numbers 1 to 200, the factors include 1 and the number itself, as well as any other integers that divide evenly into the number. Some numbers, like prime numbers, only have two factors (1 and the number itself), while others have multiple factors. To find all the factors of each number from 1 to 200, you would need to determine all the integers that divide evenly into each number within that range.
All prime numbers have two factors.
The prime factors of 200 are: 2, 5
All numbers between 1-200 except:2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,137,139,149,151,157,163,167,173,179,181,191,193,197,199.
Answer: 25Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 175 are 1, 5, 7, 25, 35, and 175.The factors of 200 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, and 200.The common factors are 1, 5, and 25. Therefore, the greatest common factor is 25.
The factors of all of the numbers from 1 to 100 are all of the numbers from 1 to 50.
All prime numbers have two factors.
All numbers have factors.
The GCF is 1.
They are all the numbers that have more than two factors in them.
The set of prime factors of the numbers from 1 to 15,000 would be the set of prime numbers between 1 and 15,000. The link below has a list of the first 10,000 prime numbers, so if you take the primes less than 15,000, you will have the set of prime factors of the first 15,000 numbers. For prime factors of individual numbers, check the related question, "What are the prime factors of the numbers from 1 to 200?" Also check for WikiAnswers questions in the form of "What are the prime factors of __?" and "What are the factors and prime factors of __?"
Because they are divisible by the most numbers.
Short answer: There are none.There is neither a greatest common factor nor common factors of a single number, such as 200, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor.The factors of 200 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, and 200.Examples:The common factors of 16 and 200 are 1, 2, 4, and 8; the greatest common factor is 8.The common factors of 200 and 350 are 1, 2, 5, 10, 25, and 50; the greatest common factor is 50.The common factors of 49, 200, and 301 are 1; the greatest common factor is 1.
The prime factors of 200 are: 2, 5
tamil numbers 1-200
180: it has 18 factors.
The factors of 200 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, and 200. Use the factors to find numbers that yield a product of 200: 1x200, 2x100, 4x50, 8x25, 10x20, 2x2x2x5x5, 2x4x25, 2x5x20, 2x25x4, etc.
The prime factors of 200 are: 2 5