12: 1, 2, 3, 4, 6, 12
16: 1, 2, 4, 8, 16
18: 1, 2, 3, 6, 9, 18
20: 1, 2, 4, 5, 10, 20
24: 1, 2, 3, 4, 6, 8, 12, 24
28: 1, 2, 4, 7, 14, 28
30: 1, 2, 3, 5, 6, 10, 15, 30
32: 1, 2, 4, 8, 16, 32
36: 1, 2, 3, 4, 6, 9, 12, 18, 36
40: 1, 2, 4, 5, 8, 10, 20, 40
42: 1, 2, 3, 6, 7, 14, 21, 42
44: 1, 2, 4, 11, 22, 44
45: 1, 3, 5, 9, 15, 45
48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
50: 1, 2, 5, 10, 25, 50
52: 1, 2, 4, 13, 26, 52
54: 1, 2, 3, 6, 9, 18, 27, 54
56: 1, 2, 4, 7, 8, 14, 28, 56
60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
63: 1, 3, 7, 9, 21, 63
64: 1, 2, 4, 8, 16, 32, 64
66: 1, 2, 3, 6, 11, 22, 33, 66
68: 1, 2, 4, 17, 34, 68
70: 1, 2, 5, 7, 10, 14, 35, 70
72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
75: 1, 3, 5, 15, 25, 75
76: 1, 2, 4, 19, 38, 76
78: 1, 2, 3, 6, 13, 26, 39, 78
80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
81: 1, 3, 9, 27, 81
84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
88: 1, 2, 4, 8, 11, 22, 44, 88
90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
92: 1, 2, 4, 23, 46, 92
96: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
98: 1, 2, 7, 14, 49, 98
99: 1, 3, 9, 11, 33, 99
Chat with our AI personalities
12: 1, 2, 3, 4, 6, 12
16: 1, 2, 4, 8, 16
18: 1, 2, 3, 6, 9, 18
20: 1, 2, 4, 5, 10, 20
24: 1, 2, 3, 4, 6, 8, 12, 24
28: 1, 2, 4, 7, 14, 28
30: 1, 2, 3, 5, 6, 10, 15, 30
32: 1, 2, 4, 8, 16, 32
36: 1, 2, 3, 4, 6, 9, 12, 18, 36
40: 1, 2, 4, 5, 8, 10, 20, 40
42: 1, 2, 3, 6, 7, 14, 21, 42
44: 1, 2, 4, 11, 22, 44
45: 1, 3, 5, 9, 15, 45
48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
50: 1, 2, 5, 10, 25, 50
52: 1, 2, 4, 13, 26, 52
54: 1, 2, 3, 6, 9, 18, 27, 54
56: 1, 2, 4, 7, 8, 14, 28, 56
60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
63: 1, 3, 7, 9, 21, 63
64: 1, 2, 4, 8, 16, 32, 64
66: 1, 2, 3, 6, 11, 22, 33, 66
68: 1, 2, 4, 17, 34, 68
70: 1, 2, 5, 7, 10, 14, 35, 70
72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
75: 1, 3, 5, 15, 25, 75
76: 1, 2, 4, 19, 38, 76
78: 1, 2, 3, 6, 13, 26, 39, 78
80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80
81: 1, 3, 9, 27, 81
84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
88: 1, 2, 4, 8, 11, 22, 44, 88
90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
92: 1, 2, 4, 23, 46, 92
96: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
98: 1, 2, 7, 14, 49, 98
99: 1, 3, 9, 11, 33, 99
100: 1, 2, 4, 5, 10, 20, 25, 50, 100
All numbers that have exactly two factors are prime numbers whereas composite numbers have more than two factors.
Usually, but not necessarily and not if they're prime. All prime numbers have the same number of factors.
its means the numbers that you multiply with to get a product has more than numbers to multiply THAT with than just that number and 1.
The numbers 27, 49, 57, and 63 are all composite numbers because each has factors other than 1 and the number itself.
It depends on whether 1 is considered a factor. If yes, then the answer to the question is no, since 1 and the number itself are the two factors implying that it is a prime. If 1 is not considered as a factor, then the square of any prime meets the requirements. If p is a prime, then p and p2 are the only two factors of p2.