I don't understand why is there a run time error in my code to check if a number is prime

#1


this is my code

#2

Hey @arth.singh863 while checking prime a should start from 2 not 0, and C++ doesn’t allow modulo wiith 0, so when a = 0 your code tries to calculate modulo with 0 which results in error.

#3

oh yes, i forgot that, thanks!

#4

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#5

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