Find LCM of Two Numbers using C++

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

int gcd(int a, int b) {
    if(b == 0) {
        return a;
    }
    return gcd(b, a % b);
}

void get_lcm(int a, int b) {
    if(b == 0) {
        cout << "Cannot divide by 0.\n";
        return;
    }
    int lcm = (a * b) / gcd(a, b);
    cout << lcm << "\n";
}

int main() {
    int a, b;
    cin >> a >> b;
    get_lcm(a, b);
    return 0;
}