Given an array of elements find all the prime factors of the LCM of the given numbers.
The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. The first line of each test case contains an integer N denoting the size of array A.The second line of each test case N space separated integers denoting the elements of array A.
Print the prime factors of the lcm of the given array in a sorted order. Print the answer for each test case in a new line.
1 <= T <= 100
1 <= N <= 105
1 <= A[ ] <= 106
1 2 3 4 5 6 7 8
2 3 5 7
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