Factors and Multiples Review Practice

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Front

What are multiples?

Back

Multiples are numbers that can be divided by a certain number without leaving a remainder. For example, the multiples of 3 are 3, 6, 9, 12, 15, etc.

Front

What is a prime number?

Back

A prime number is a number that has exactly two distinct factors: 1 and itself. For example, 2, 3, 5, and 7 are prime numbers.

Front

Is 9 a prime number?

Back

No, 9 is not a prime number because it has more than two factors: 1, 3, and 9.

Front

What are the factors of 36?

Back

The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.

Front

What are the factors of 18?

Back

The factors of 18 are 1, 2, 3, 6, 9, and 18.

Front

What is the least common multiple (LCM)?

Back

The least common multiple (LCM) of two or more numbers is the smallest number that is a multiple of each of the numbers. For example, the LCM of 3 and 4 is 12.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) of two or more numbers is the largest number that divides all of them without leaving a remainder. For example, the GCF of 8 and 12 is 4.

Front

Are all even numbers multiples of 2?

Back

Yes, all even numbers are multiples of 2 because they can be divided by 2 without a remainder.

Front

What is a composite number?

Back

A composite number is a number that has more than two factors. For example, 4, 6, and 8 are composite numbers.