hdu1019

#include <stdio.h>

int gcd(int a, int b) { int t; while(t=a%b) { a=b; b=t; } return b; }

int main(void) { int t,m,n,i,g,lcm; scanf("%d",&t); while(t--) { scanf("%d",&m); lcm=1; while(m--) { scanf("%d",&n); g=gcd(lcm,n); lcm*=n/g; } printf("%d\n",lcm); } return 0; }