Everything except 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72.
2 is a factor of 72. (36*2)
Not a factor of 18 ?
36
8, 24, and 72 are all factors of 72 and multiples of 8.
The GCF of 72 and 144 is 72. Since 72 is a factor of 144, it is automatically the GCF.
2 is a factor of 72. (36*2)
6 is not a prime number but it is a factor of 72
Because 6 times 12 is 72. A number, when multiplied by another number, is a factor of the new number.
Not a factor of 18 ?
36
36
No, but 8 is the GCF of 56 and 72.
6, 12, 18, 24, 36, 72
8, 24, and 72 are all factors of 72 and multiples of 8.
The GCF is 9.
9
3