Since 5 is a factor of 20, it is automatically the GCF.
The greatest common factor of 70 and 75 is 5.
5
The prime factors of 20 are 2, 2 and 5 The prime factors of 35 are 5 and 7 Therefore the greatest (and, other than 1, the only) common divisor of 20 and 35 is 5.
The Greatest Common Divisor (GCD) for 20 65 is 5.
Greatest Common Divisor (GCD) for 5 3 is 1.
The Greatest Common Divisor of 135, 125 is 5.
The Greatest Common Divisor of 50, 55 is 5.
The Greatest Common Divisor of 10, 45 is 5.
Greatest Common Divisor (GCD) for 20 65 is 5.
The greatest common multiple is an infinite amount and not very practical for problem solving.
The Greatest Common Divisor (GCD) for 50 35 is 5.
The Greatest Common Divisor (GCD) for 45 80 is 5.