package codeup_100;
import java.util.Scanner;
public class codeup_92 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int a = sc.nextInt();
int b = sc.nextInt();
int c = sc.nextInt();
int day = 1;
while(day%a!=0||day%b!=0||day%c!=0) {
day++;
}
System.out.println(day);
}
}