tests = int(input())

for _ in range(tests):
    result = []
    mods = []
    n = int(input())
    mod = 1
    for _ in range(100000):
        nxt = mod // n
        mod -= n * nxt
        result.append(nxt)
        mods.append(mod)
        mod *= 10
    
    for length in range(1, 50001):
        ok = True
        for i in range(1, length + 1):
            ok &= result[-i] == result[-(i + length)]
            ok &= mods[-i] == mods[-(i + length)]
            if not ok:
                break

        if ok:
            print(length)
            break