Submission #1178543

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Source Code Expand

N = parse(Int, readline())

function checkprime(n)
    ps = round(sqrt(n)) + 1
    for p in 3:n
        if p * p > n
            return 0
        end
        if n % p == 0
            return 1
            break
        end
    end
end
if checkprime(N) == 0
    println("YES")
else
    println("NO")
end

Submission Info

Judge Result