3 & 7 (and of course, 1 and 21)
1 2 3 6 7 14 21 42.
These numbers divide into 15 evenly: 1 3 5 and 15.
1, 2, 4, 5, 10, and 20 divide evenly into 20.
5 & 17
1 and 13
A factor can divide into its multiple evenly.
1 2 3 6 7 14 21 42.
1, 2, 3, 6, 7, 14, 21, and 42
2 and 60 will divide evenly into 120.
All Factors of 147:1, 3, 7, 21, 49, 147
62,349 can be divided evenly by these numbers: 1, 3, 7, 21, 2969, 8907, 20783, 62349.
These numbers divide into 15 evenly: 1 3 5 and 15.
You just divide it by 21 and if there is no remainder then it went in evenly.
21 can be divided evenly by: 1 3 7 and 21.
These are the numbers that divide into 28 evenly: 1, 2, 4, 7, 14, 28.
1, 2, 4, 5, 10, and 20 divide evenly into 20.
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.