Tiana S.

asked • 03/04/16

Tim at 31 raisins how many factor pairs does 31 have? Is it a prime number or a composite number

Tim at 31 raisins how many factor pairs does 31 have? Is it a prime number or a composite number

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Noyam A. answered • 03/04/16

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31 has two factors. 
1 and 31. 
Any number which has two factors; 1 and itself is a prime number. Therefore, 31 is a prime number.
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Kenneth S.

Best statement would be ANY NUMBER HAVING ONLY 2 FACTORS, 1 AND ITSELF, IS PRIME.
 
The student should be encouraged to research Prime Numbers via Google, and to find Youtube videos on Eratotosthenes' Sieve. 
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03/04/16

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