Divisibility Rules

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).

Front

What is the divisibility rule for 3?

Back

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

Front

What is the divisibility rule for 5?

Back

A number is divisible by 5 if its last digit is 0 or 5.

Front

What is the definition of an even number?

Back

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

Front

What is the definition of an odd number?

Back

An odd number is any integer that is not exactly divisible by 2.

Front

Is 0 considered an even number?

Back

Yes, 0 is considered an even number because it is divisible by 2.

Front

How can you determine if a number is divisible by 4?

Back

A number is divisible by 4 if the number formed by its last two digits is divisible by 4.

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 divisibility rule for 9?

Back

A number is divisible by 9 if the sum of its digits is a multiple of 9.

Front

What is the divisibility rule for 10?

Back

A number is divisible by 10 if its last digit is 0.