12
There are no factors of 10 between 20 and 100.
5, 10, 15 and 20 have five as a factor. The number 16 has five factors.
1,11,12,13,14,15,16,17,18,19,2,6,7,8,9,3,4,5, those r some of the factors between 10 and 20
6, 8, 10, 14, 15
20
12 is a comsite number between 10 and 20 :)
The only composite factor of 10 is 10. The composite factors of 20 are 4, 10, 20
20 and 28 both have six factors.
Because they only have two factors, as do 17 and 19.
The factors of 16 are 1, 2, 4, 8, and 16.
20 does.