three
The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF of 42 and 81 is 3.The prime factorization of 42 is 2*3*7The prime factorization of 81 is 3*3*3*3Their only and greatest common factor is 3.
three
The greatest common factor of the numbers 42, 90 and 81 is 3.
The GCF is 3.
The GCF is 3.
The GCF is 1.
The GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 3.