# Which factors of 20 are also factors of 30?

## Question:

Which factors of 20 are also factors of 30?

## Common Factors:

In mathematics, a factor of number *x* is number *y* that divides into *x* evenly, which means that *x* ÷ *y* is equal to an integer. When two numbers have a factor that is the same, we say that it is a common factor of the two numbers.

## Answer and Explanation:

The factors of 20 that are also factors of 30, or the common factors of 20 and 30, are 1, 2, 5, and 10.

To find the common factors of 20 and 30, we...

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