#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;
}

hdu1019