Anything that isn't 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
1, 2 and 4
No but 15 is a factor of 60
No. they both share a factor of 2.
How about 2 and 12 or 4 and 10
the greatest common factor for 60 and 2 is 1
2
4, 12, 20, 60
60 = 2 * 2 * 3 * 5
The prime factorization will always be longest. 2 x 3 x 7 = 42 2 x 2 x 3 x 5 = 60
2
The GCF is 2.
The GCF is 2.
The GCF is 3.
2 and 4 if you subtract them.
Anything that isn't 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
60 and 88 have three common factors: 1, 2, and 4.