2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20?

smallestmultiple.cpp

#include <bits/stdc++.h>
#include <cassert>
using namespace std;

int main() {
    int n = 40;
    while (true) {
        bool found = true;
        for (int i = 2; i <= 20; i++) {
            if (n % i != 0) {
                found = false;
                break;
            }
        }
        if (found)
            break;
        n++;
    }
    cout << n;
}