from math import isqrt
Q=int(input())
A=[set() for i in range(50)]
for x in range(3,50):
  for y in range(2,10**6):
    z=y**x
    if z>10**12:
      break
    A[x].add(z)
for _ in range(Q):
  N=int(input())
  result=1
  x=isqrt(N)
  if x**2==N:
    result=2
  for x in range(3,50):
    if N in A[x]:
      result=x
  print(result)