import sys

sys.setrecursionlimit(10**6)
int1 = lambda x: int(x)-1
p2D = lambda x: print(*x, sep="\n")
def II(): return int(sys.stdin.buffer.readline())
def MI(): return map(int, sys.stdin.buffer.readline().split())
def MI1(): return map(int1, sys.stdin.buffer.readline().split())
def LI(): return list(map(int, sys.stdin.buffer.readline().split()))
def LI1(): return list(map(int1, sys.stdin.buffer.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def BI(): return sys.stdin.buffer.readline().rstrip()
def SI(): return sys.stdin.buffer.readline().rstrip().decode()
dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
inf = 10**19
# md = 998244353
md = 10**9+7

def isterm(a):
    while a%2==0:a//=2
    while a%5==0:a//=5
    return a==1

def gcd(a,b):
    while b:a,b=b,a%b
    return a

def red(a,b):
    g=gcd(a,b)
    return a//g,b//g

for _ in range(II()):
    n=II()

    if isterm(n):
        print(1)
        continue

    d=1
    while 10*d<n:d*=10

    d,n=red(d,n)

    e,ten=1,10%n
    while ten!=1:
        ten=ten*10%n
        e+=1
    print(e)