The common factors of 21 and 51 are: 1 and 3
Common factors of 49 and 196 are 1, 7, and 49.
The factors of 49 are 1, 7 and 49. For them to be common, they need to be compared to another set of factors.
They are 49+2 = 51
The common factors of 51 and 85 are: 1 and 17.
The common factors of 51 and 68 are: 1 and 17
1 and 3 are the common factors of 51 and 15.
The common factors of 51 and 39 are 1 and 3.
The common factors of 49 and 35 are: 1 and 7
The GCF is 1.
The common factors of 28 and 49 are 1 and 7.
Factors of 49 are 1, 7, and 49. Factors of 14 are 1, 2, 7, and 14. The common factors of 49 and 14 are 1 and 7.