Q: What are the highest common factors of 10 and 45?

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The highest common factor 15

The Greatest Common Factor (GCF) is: 5

The factors of 10 are: 1, 2, 5, 10The factors of 45 are: 1, 3, 5, 9, 15, 45The common factors are: 1, 5

First you find the factors of 45 and 60. The Factors of 45 are:1,3,5,9,15,and 45 The Factors of 60 are:1,2,3,4,5,6,10,12,15,20,30,60 The GCF is the highest common number so the GCF is 15.

The GCF of 45 and 80 is 5. Prime factors: 45 = 5x3x3 80 = 5x2x2x2x2 the only prime factor in both is 5, and so the highest common factor is 5. Alternative method: 80 mod 45 = 35 45 mod 35 = 10 35 mod 10 = 5 10 mod 5 = 0 so HCF = 5.

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Common factors of 40 and 45 are: 1 and 5.

The highest common factor of 108 and 45 is 9

The highest common factor 15

39 and 45's highest common factor is three.

The GCF is 9.

The GCF is 15.

The GCF is 15.

The highest common factor is 9

The common factors are: 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 Greatest Common Factor (GCF) is: 5

The GCF of 10 and 45 is 5 The factors of 10 are 1, 2, 5, and 10. The factors of 45 are 1, 3, 5, 9, 15, and 45. The largest factor they have in common is 5, so 5 is the greatest common factor. Or, you can use prime factors. The prime factors of 10 are 2 and 5. The prime factors of 45 are 3, 3, and 5. The prime factors they have in common are a single 5, so 5 is the greatest common factor.