Saturday, August 15, 2009 – Divisibility by 7, It’s as Easy as “1-3-2″ !

When you see divisibility rules in a mathematics textbook, the divisibility by 7 rule is usually left out. By remembering the sequence 1 – 3 – 2, you can, with practice, quickly determine whether a number is divisible by 7 or not, and if not, what the remainder will be. Please click on the file name below to see the pdf file.