SOLUTION: do 9, 25, 64, 144 have an odd number of factors?

SOLUTION: do 9, 25, 64, 144 have an odd number of factors?

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Question 773422: do 9, 25, 64, 144 have an odd number of factors?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Yes they do. All perfect squares have an odd number of factors. Also, only numbers that are perfect squares have an odd number of factors.
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