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Solution
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Solution provided by AtoZmath.com
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Is 31 a prime number calculator
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Example1. is 31 a prime number
Solution:
To check if `31` is prime, test for factors from 2 up to the square root of `31` (which is `5`)
`31-:2=15` and remainder = 1, So it is not divisible by 2
`31-:3=10` and remainder = 1, So it is not divisible by 3
`31-:5=6` and remainder = 1, So it is not divisible by 5
Since, `31` is not divisible by any prime number upto `5`.
So `31` is a prime number.
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