Factors go into the number evenly, the number goes into multiples evenly.
2 can go into 38 and 100 evenly.
It is a prime number and therefore no number but 1 and 41 can go into it evenly.
6*9=54 so they both go into it evenly, but the lowest number is 18.
7 and 31 go into 217 evenly.
No it does not b.c 75 is an odd number and 100 is a even number
No, 11 doesn't evenly go into 100 (11 is an odd number, while 100 is an even number).
The least common multiple [the number that the numbers go into evenly] is 360.