import math

def make_divisors(n):
    lower_divisors , upper_divisors = [], []
    i = 1
    while i*i <= n:
        if n % i == 0:
            lower_divisors.append(i)
            if i != n // i:
                upper_divisors.append(n//i)
        i += 1
    return lower_divisors + upper_divisors[::-1]

for i in range(int(input())):
    m = n = int(input())
    while m%2==0:m//=2
    while m%5==0:m//=5
    if m==1:print(1)
    else:
        for i in make_divisors(sum(1for i in range(n)if math.gcd(i+1,n)==1)):
            if 10**i%m==1:
                print(i)
                break