Using the digits 1 to 9, each once only, create three 3 digit numbers.
Your goal is to create three numbers which, when multiplied together, give the lowest value.
Hint: What must the three numbers begin with?
147, 258, 369.
Multiplied together = 13,994,694.
A little trial and error with a calculator might help, but it's clear that the 1, 2 and 3 must begin the numbers.