Even/Odd/Prime/Composite Review

Front

What is an even number?

Back

An even number is any integer that is exactly divisible by 2. Examples: 2, 4, 6.

Front

What is an odd number?

Back

An odd number is an integer that is not divisible by 2. Examples: 1, 3, 5.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. Examples: 2, 3, 5.

Front

What is a composite number?

Back

A composite number is a natural number greater than 1 that is not prime, meaning it has more than two positive divisors. Examples: 4, 6, 8.

Front

What is the sum of an even number and an even number?

Back

The sum of an even number and an even number is always even.

Front

What is the sum of an odd number and an odd number?

Back

The sum of an odd number and an odd number is always even.

Front

What is the sum of an even number and an odd number?

Back

The sum of an even number and an odd number is always odd.

Front

Which of the following is NOT a prime number: 3, 7, 9, 11?

Back

9 is NOT a prime number.

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number. Example: Factors of 6 are 1, 2, 3, and 6.

Front

If Kyra has 5 socks and Kody has 6 socks, who has an even number of socks?

Back

Kody has an even number of socks.