19
1 and 19.
One.
Yes, 57 is divisible by 3 because 3 goes into 57 evenly, with a quotient of 19.
19 and 2
The factors of 15 are 1, 3, 5, and 15.
1, 2, 19, 38.
1, 7, 19, 133.
1, 3, 5, 15.
1, 3, 5 and 15.
The GCF of 15 and 20 is 5
What goes into 22 and 100 evenly