Take the number pad on a telephone, or the side of a computer. Make a 4 digit number by taking the 4 letters (clockwise or anti-clockwise) in a square or rectangle. For example 2365, 1463 or 9713... Divide the number by 11. Every time the answer will turn out to be a whole number. Why?

789
456
123

I don't know the answer yet myself, although I can find out quite easily by cheating and looking at the answer page. I want t work it out myself first.
Staurm Reviewed by Staurm on . Problem relating to the number "11"? Take the number pad on a telephone, or the side of a computer. Make a 4 digit number by taking the 4 letters (clockwise or anti-clockwise) in a square or rectangle. For example 2365, 1463 or 9713... Divide the number by 11. Every time the answer will turn out to be a whole number. Why? 789 456 123 I don't know the answer yet myself, although I can find out quite easily by cheating and looking at the answer page. I want t work it out myself first. Rating: 5