# divisibility rules (math tricks!)

#### [email protected]

_http://www2.sunysuffolk.edu/wrightj/MA22/Num/DivRule.htm_

(http://www2.sunysuffolk.edu/wrightj/MA22/Num/DivRule.htm)

3

If the sum of the digits is divisible by three, the number is also

4

If the last two digits are divisible by 4, the number is also

5

If the last digit is a 5 or a 0, the number is divisible by 5.

6

If the number is divisible by both 3 and 2, it is also divisible by 6.

There are lots more, and explanations.

[Non-text portions of this message have been removed]

(http://www2.sunysuffolk.edu/wrightj/MA22/Num/DivRule.htm)

3

If the sum of the digits is divisible by three, the number is also

4

If the last two digits are divisible by 4, the number is also

5

If the last digit is a 5 or a 0, the number is divisible by 5.

6

If the number is divisible by both 3 and 2, it is also divisible by 6.

There are lots more, and explanations.

[Non-text portions of this message have been removed]