Mysterious NumberEnter 999999 into your calculator. Divide the above number by seven. The result will be a mysterious number! Throw a die, or randomly pick a number from 1 to 6. Multiply the result times the mysterious number. Arrange the digits of the product from lowest to highest from left to right to form a six-digit number. What is the number? It will always be the same number. Why ? Created by Martin Gardner.