What is the greatest common factor 80 and 90?

Answer 1

Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90

Factors of 20: 1, 2, 4, 5, 10, and 20

Common factors of 20 and 90: 1, 2, 5, and 10

Greatest common factor (there can be only one 'greatest'): 10

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 82 and 90 is 2

Answer 3

Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90.

Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.

GCF (90, 80) = 10

Answer 4

You need at least two numbers to find a GCF.

Answer 5

The GCF is 10.

Answer 6

The GCF is 6.

Answer 7

It is 1 but the hcf is 10

Answer 8

The GCF is 10.

Answer 9

Ans - 10