AnswerBox
C

Check Prime Number

Description:
Determine whether a number is prime.
C Code
#include <stdio.h>
#include <math.h>
int isPrime(int n) {
    if (n < 2) return 0;
    for (int i = 2; i <= (int)sqrt(n); i++)
        if (n % i == 0) return 0;
    return 1;
}
int main() {
    printf("%d\n", isPrime(29));
    return 0;
}
Expected Output
1 (true)