The GCF of 21, 35, and 81 is 1.
The prime factorization of 21 is 3*7
The prime factorization of 35 is 5*7
The prime factorization of 81 is 3*3*3*3
So they have no common factor other than 1, which is the GCF.
7
The greatest common factor (GCF) is: 7.7
The GCF is 7.
The GCF of 21, 35, and 63 is 7.
21 = (3)(7)35 = (5)(7)7
The GCF is 1.
The GCF is 7.
The GCF is 7.
The greatest common factor of 7, 35 and 49 is 7.
The greatest common factor of 35 and 125 is 5.The greatest common factor of the numbers 35 and 125 is 5.
The factors of 21 are:1, 3, 7, 21The factors of 35 are:1, 5, 7, 35The common factors are:1, 7The Greatest Common Factor:GCF = 7
The GCF is: 7