The greatest common factor (GCF) of 45 and 20 is 5.
Prime factors:
45 = 5×3×3
20 = 5×2×2
the only prime factor in both is 5, and so the highest common factor is 5.
Alternative method:
45 mod 20 = 5
20 mod 5 = 0
so HCF = 5.
The Greatest Common Factor (GCF) is: 5
The GCF of 20 and 45 is 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
The GCF is 5.
The greatest common factor of 45 and 225 is 15.The GCF is: 45
The Greatest Common Factor (GCF) is: 5
The Greatest Common Factor of 20, 35, 50: 5
The GCF of 20 35 45 is 5.
i think its 5
The GCF is 5.
The GCF is 5.
The GCF is 5.
The GCF is 5.
The GCF is 5.
The GCF of 20 and 45 is 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
The GCF of 20, 35 and 45 is 5.