#include <cstdio>
int main()
{
    
    int num1, num2, num3,IAKIOI=1;
    scanf("%d%d%d",&num1,&num2,&num3);
    while (!((IAKIOI%num1 == 0) && (IAKIOI%num2 == 0) && (IAKIOI%num3 == 0)))
        IAKIOI++;
    printf("%d\n",IAKIOI);
    return 0;
}