Brain Buster

Mystery Multiplication

Write down any three-digit number

Write it down again so that you have a six-digit number.

Divide the six-digit number by 7.

There should be no remainder.

Divide the answer by 11.

There should be no remainder.

Divide the answer by 13.

There should be no remainder.

Your answer should be the original number !

Scroll Down to see why this ALWAYS works ...

**Answer**: This works because 7 x 11 x 13 = 1001 and ABC x 1001 = ABCABC