GCF & LCM

Front

What does GCF stand for in mathematics?

Back

GCF stands for Greatest Common Factor, which is the largest positive integer that divides each of the given integers without leaving a remainder.

Front

What does LCM stand for in mathematics?

Back

LCM stands for Least Common Multiple, which is the smallest positive integer that is a multiple of each of the given integers.

Front

How do you find the GCF of two numbers?

Back

To find the GCF of two numbers, list the factors of each number, then identify the largest factor that appears in both lists.

Front

How do you find the LCM of two numbers?

Back

To find the LCM of two numbers, list the multiples of each number, then identify the smallest multiple that appears in both lists.

Front

What is the GCF of 28 and 42?

Back

The GCF of 28 and 42 is 14.

Front

What is the GCF of 12 and 30?

Back

The GCF of 12 and 30 is 6.

Front

What is the LCM of 5, 10, and 15?

Back

The LCM of 5, 10, and 15 is 30.

Front

What is the GCF of 50 and 40?

Back

The GCF of 50 and 40 is 10.

Front

What is the LCM of 8 and 12?

Back

The LCM of 8 and 12 is 24.

Front

What is the prime factorization method for finding GCF?

Back

The prime factorization method involves breaking down each number into its prime factors and then multiplying the lowest powers of common prime factors.