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13, 23 & 37 are all prime numbers which means that their factors are 1 and themselves only.
Thus, their common factor is 1.
1 37 , 12THE GCF is 1.
The gcf is 1.The GCF is 1.
They are: 5 7 11 13 17 19 23 29 31 and 37
The GCF is: 37
The GCF is 74.
The GCF is 1.
The greatest common factor of 208 and 273 is 13.
1 is the only even common factor of 13 and 37.
gcf of 37 and 81 is 1.
The GCF is 37.