Factors of 45 are 1, 3, 5, 9, 15, and 45 Factors of 20 are 1, 2, 4, 5, 10, and 20 The GCF of 45 and 20 is 5
1 and 5 are the only numbers that are factors of 20, 35, and 45.
Factors of 45: 1, 3, 5, 9, 15, 45.Factors of 55: 1, 5, 11, 55.Factors of 20: 1, 2, 4, 5, 10, 20.GCF (45, 55, 20) = 5
Factors of 12: 1, 2, 3, 4, 6, 12 Factors of 20: 1, 2, 4, 5, 10, 20 Factors of 45: 1, 3, 5, 9, 15, 45 GCF (12, 20, 45) = 1
5
The common factors of 20 and 45 are 1 and 5 Factors of 45: 1 and 45, 3 and 15, and 5 and 9 Factors of 20: 1 and 20, 2 and 10, and 4 and 5 So the common factors are 1 and 5.
The common factors are: 1, 5
The greatest common factor of 20 and 45 is 5.The factors of 20 are: 1, 2, 4, 5, 10, 20The factors of 45 are: 1, 3, 5, 9, 15, 45The common factors are: 1, 5
5
The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40 The factors of 45 are 1, 3, 5, 9, 15, and 45
The factors of 60 that are not in 45 are 2, 4, 6, 10, 12, 20, 30 and 60
The factors of 30 are 1, 2, 3, 5, 6, 10, 20, and 30. The factors of 45 are 1, 3, 5, 9 15, and 45. The common factors of 30 and 45 are 1, 3, and 5.