What is the greatest common factor of 75 8 21?

Answer 1

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

The greatest common factor of 75 and 192 is 3

Answer 2

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

The greatest common factor of 28 and 75 is 1

Answer 3

Factors of 75: 1, 3, 5, 15, 25, 75

Factors of 128: 1, 2, 4, 8, 16, 32, 64, 128

GCF (75, 128) = 1

Answer 4

GCF(75, 8, 21) = 1: the numbers are coprime.

Answer 5

The GCF is 1.