#include <stdio.h>
#include <math.h>

int minDivisor(int value) {
    if (value <= 3)
        return 1;
        
    if (value % 2 == 0)
        return 2;
        
    int n = (int) (sqrt(value) + 0.5);
    
    for (int divisor = 3; divisor <= n; divisor += 2)
        if (value % divisor == 0)
            return divisor;
            
    return 1;
}

int main() {
    int n = 33;
    
    int smallest = minDivisor(n);
    int biggest = n / smallest;
    
    printf("%i = %i * %i", n, smallest, biggest);
    return 0;
}