Divisibility (February 2)

Front

What is the definition of divisibility?

Back

A number is divisible by another if, when divided, it results in a whole number with no remainder.

Front

Which numbers are divisible by 2?

Back

Any even number is divisible by 2.

Front

What is the divisibility rule for 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

How can you determine if a number is divisible by 5?

Back

A number is divisible by 5 if it ends in 0 or 5.

Front

What is the divisibility rule for 6?

Back

A number is divisible by 6 if it is divisible by both 2 and 3.

Front

What is the significance of the sum of digits in determining divisibility by 3?

Back

The sum of the digits must be divisible by 3 for the whole number to be divisible by 3.

Front

Can you give an example of a number divisible by 2?

Back

50808 is an example of a number divisible by 2.

Front

What is an example of a number that is divisible by 6?

Back

6312 is an example of a number that is divisible by 6.

Front

What does it mean for a number to be even?

Back

An even number is any integer that is exactly divisible by 2.

Front

What is the relationship between divisibility by 2 and 3 for a number to be divisible by 6?

Back

A number must be even (divisible by 2) and the sum of its digits must be divisible by 3 to be divisible by 6.