###### Asked in Factoring and Multiples

Factoring and Multiples

# How is one a common factor?

## Answer

###### Wiki User

###### June 13, 2012 10:17PM

It's part of the identity property. Pick a number. Multiply it by one. The answer will be the number. That means that every number has the factor pair of itself and 1, so every number has one as a common factor.

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