Wednesday, June 13, 2012

Divisibility Rules

1- All numbers are divisible by one.
2- Even numbers.
3- When you add the digits up, sum of the digits are divisible by three.
4-Divisible by two twice.
5- Ending digit has to be five or zero.
6- Divisible by three and two.
8- Divisible by two, three times.
9- Add all the digits up, sum of the digits are divisible by nine
10- Digit has to end with zero.
 
There is no rule for seven.

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