We know that prime numbers are positive integers that have exactly two distinct positive divisors. Similarly, we'll call a positive integer *t* Т-prime, if *t* has exactly three distinct positive divisors.

You are given an array of *n* positive integers. For each of them determine whether it is Т-prime or not.
The first line contains a single positive integer, *n* (1 ≤ *n* ≤ 10<sup class="upper-index">5</sup>), showing how many numbers are in the array. The next line contains *n* space-separated integers *x*<sub class="lower-index">*i*</sub> (1 ≤ *x*<sub class="lower-index">*i*</sub> ≤ 10<sup class="upper-index">12</sup>).

Please, do not use the %lld specifier to read or write 64-bit integers in С++. It is advised to use the cin, cout streams or the %I64d specifier.
import math
def prime_num(x):
    if x == 2:
        return True
    for i in range(2,int(x/2)+1):
        if x % i == 0:
            return False
    return True
n = int(input())
m = list(map(int,input().split()))
for i in range(n):
    if prime_num(math.sqrt(m[i])) and int(math.sqrt(m[i])) == math.sqrt(m[i]):
        print('YES')
    else:
        print('NO')