1,2,3,6,7,14,21,42
1,2,3,4,6,12
1,3,5,7,15,21,35,105
The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 49 are: 1, 7, 49
The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 The factors of 210 are: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
1, 2, 3, 6, 9, 18 1, 2, 3, 6, 7, 14, 21, 42
If that's 3r + 12, that factors to 3(r + 4)
2 with remainder 9.
5.25
105 / 14 = 7 r 7 14 / 7 = 2 r 0 GCF of 105 and 14 is 7.
28
The factors of 3 are 1 and 3 The factors of 12 are 1, 2, 3, 4, 6, and 12 The factors of 18 are 1, 2, 3, 6, 9, and 18
Well, honey, if you're talking about good ol' division, 42 can go into 96 a grand total of 2 times with a remainder of 12. So, there you have it - 42 struts into 96 twice, leaving a little leftover party with 12 still hanging around.
42 / 18 = 2 r 6 18 / 6 = 3 r 0 -> gcf of 42 and 18 is 6.