#include<iostream>
#include<algorithm>
using namespace std;
long long a[3];
int gcd(long long a, long long b) {
if (b % a == 0)return a;
b %= a;
gcd(b, a);
}
int main() {
long long now2;
for (int i = 0; i < 3; i++)
cin >> a[i];
sort(a, a + 3);
long long now =(a[0]*a[1])/ gcd(a[0], a[1]);
if (now <= a[2])
now2 = (now * a[2]) / gcd(now, a[2]);
else
now2 = (now * a[2]) / gcd(a[2], now);
cout << now2;
}