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Reggie ate 31 raisns how many factor pairs dose 31 have is it a prime number or composite number
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Reggie ate 31 raisns how many factor pairs dose 31 have is it a prime number or composite number

User HPP
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2 Answers

6 votes
The only factor pair is 1x31.
Therefor it is a prime number.
User Chris Yim
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2 votes

A prime number has only one factor pair:

(1) x (itself) .

31 is one of those.

User James Walford
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