What are the common factors and greatest common factor of 48?

Answer 1

Short answer: There are none.

There is neither a greatest common factor nor common factors of a single number, such as 48, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor.

The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48.

Examples:

The common factors of 8 and 48 are 1, 2, 4, and 8; the greatest common factor is 8.

The common factors of 16 and 48 are 1, 2, 4, 8, and 16; the greatest common factor is 16.

The common factors of 48 and 64 are 1, 2, 4, 8, and 16; the greatest common factor is 16.

The common factors of 48 and 72 are 1, 2, 3, 4, 6, 8, 12, and 24; the greatest common factor is 24.

The common factors of 48 and 90 are 1, 2, 3, and 6; the greatest common factor is 6.