Math 6 - GCF & LCM Practice

Front

What is the Least Common Multiple (LCM)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of each of the numbers.

Front

How do you find the LCM of two numbers?

Back

List the multiples of each number and find the smallest common multiple.

Front

Find the LCM of 4 and 14.

Back

28

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number.

Front

What are the factors of 25?

Back

1, 5, 25

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF of two or more numbers is the largest number that divides each of the numbers without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

List the factors of each number and find the largest common factor.

Front

Find the GCF of 20 and 30.

Back

10

Front

What is a composite number?

Back

A composite number is a number that has more than two factors.

Front

What is a prime number?

Back

A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.