Divisibility Rules

When can we say that a number is divisible by another number?

• If the quotient is a whole number

• If the quotient has a remainder

Is 1 235 divisible by 5?

• No

• Yes

Is 234 divisible by 2

• Yes

• No

Is 240 divisible by 2, 5, and 10?

• Yes

• No

Is 3 453 divisible by 2,3, and 6?

• Yes

• No

Does all numbers divisible by 5 always divisible by 10?

• Yes

• No

Does all numbers divisible by 10 also divisible by 5?

• Yes

• No

Does all numbers divisible by 9 also divisible by 3?

• Yes

• No

Does all numbers divisible by 3 also divisible by 9?

• Yes

• No

If 27 is divisible by 3, can we say that 3 is a factor of 27?

• Yes

• No