The greatest common factor of 51, 66, and 39 is 3. Work shown below 51 = 3 * 17 66 = 2 * 3 * 11 39 = 3 * 13
The GCF of 51 and 65 is 1. The prime factorization of 51 is 3*17. The prime factorization of 65 is 5*13 They have no factors in common other than 1.
Since 65 is a factor of 520, it is automatically the GCF.
The GCF is 3.
The GCF is 3.
The GCF is 1.
The GCF is 17.
The GCF is 1.
The GCF is 3.
The GCF for 29 51 is 1.
The GCF of 42 and 51 is 3.
255 = 51 x 5 so 51 is GCF