The greatest common factor of 15 and 21 is 3
The factors of 15 are: 1, 3, 5, 15
The factors of 21 are: 1, 3, 7, 21
The common factors are: 1, 3
The Greatest Common Factor (GCF) is: 3
Chat with our AI personalities
Factors of 15 are 1, 3, 5, and 15. Factors of 63 are 1, 3, 7, 9, 21, and 63. The greatest common factor of 15 and 63 is 3.
The factors of 21 are: 1, 3, 7, 21The factors of 45 are: 1, 3, 5, 9, 15, 45The common factors are: 1, 3The Greatest Common Factor (GCF) is: 3
The greatest common factor is 3
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42 The factors of 63 are: 1, 3, 7, 9, 21, 63 The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105 The common factors are: 1, 3, 7, 21 The Greatest Common Factor: GCF = 21
The common factors are 1 and 7. The GCF is 7.