def solve
  n = gets.to_s.to_i
  x = 1
  i = 0
  cnt = {}
  while cnt[x].nil?
    cnt[x] = i
    x = (x * 10) % n
    if x.zero?
      return 1
    end
    i += 1
  end
  return i - cnt[x]
end

t = gets.to_s.to_i
t.times do
  puts solve
end