Divisibility Rules

A number is divisible by ......

- 2 if the last digit of the number is an even number.
- 3 if the sum of all the digits in the number can be divided evenly by 3.
- 4 if the last 2 digits of the number can be evenly divided by 4.
- 5 if the last digit of the number is a 5 or 0.
- 6 if the the number is divisible by 2 and 3.
- 9 if the sum of the digits is divisible by 9.
- 10 if the last digit of the number is a 0.

Now this is the story (pause) all about how

divisibility rules gets used in the schools

and we’d like to take a minute just sit right down

We’ll tell you how to divide like the best in town

In Ballard County born and raised

In the classroom where we spend most of our days

Sittin back, list’nin, learnin all cool

Mrs. White teachin divisibility inside the school

She gave a couple problems, they were no good

we started having trouble in her neighborhood

She say 2, 3, 4, 5, 6, 9, 10

Gotta follow the rules if you wanna win

So we listened to the rules and now we believing

You can divide by 2 is the last digits even

Divide by 3? It different you see

The sum of the digits has to divide by 3

The rule for 4 is about the last 2 digits

And if you can divide them by 4 do ya get it?

Dividin by 5 is easy you know

If the number end with 5 or 0

To divdide by 6 you gotta say yes

To 3 and 4 with success

Dividin by 9 is like 3 but this time

You add the digits and divide by 9

And then theres 10 its so easy

When the number ends in 0 it’s a breezy

She gave us some problems bout 12 or 13

And we yelled to the teacher “yo white this aint nothing”

Looked at the homework, we were done quick

Knowin the divisibility rules does the trick

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