1,3,5,15
16,384
if they have no obvious common factors (such as 3!!!!!!!) then you multiply them to get the GCF.
10 and 5.
The factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 The factors of 15: 1, 3, 5, 15
144 has 15 factors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144.
The factors of 144 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72 and 144, fifteen in all.
30
Because 45 is not a factor of 60, whereas 15 and 30 are.
If in my garden all fifteen.
The factors of 15 are:1, 3, 5, 15The factors of 35 are:1, 5, 7, 35The common factors are: 1, 5
Factors of 9 include 1, 3, and 9. Factors of 15 include 1, 3, 5, and 15. Factors common to both 9 and 15 are 1 and 3.