>>713
#include <stdio.h>
int gcd(int x, int y)
{
if(y==0) return x;
else return gcd(y, x % y);
}
int lcd(int x, int y)
{
return x * y / gcd(x, y);
}
int main()
{
int a, b, c, d, e, f, g, h;
scanf("%d%d%d%d%d%d%d%d", &a, &b, &c, &d, &e, &f, &g, &h);
printf("%d\n", lcd(a, lcd(b, lcd(c, lcd(d, lcd(e, lcd(f, lcd(g, h))))))));
return 0;
}