The factors of 61 are 1 and 61.
For them to be common, they need to be compared to another set of factors.
61
The greatest common factor of 61 and 46 is 1.
The greatest common factor of 54 , 61 = 1
The greatest common factor of 61 , 37 = 1
The Greatest Common Factor (GCF) of 61 and 91 is: 1
The GCF is 1.
61 and 80 don't have a common factor (except 1 which doesn't count).
The GCF is 61.
The Greatest Common Factor (GCF) is: 1
The only common factor is 1.
1 is the only common factor of 18 and 61.
The [only] common factor of 8 and 61 is 1.