GCF/LCM

Front

What does GCF stand for?

Back

GCF stands for Greatest Common Factor, which is the largest number that divides two or more numbers without leaving a remainder.

Front

What does LCM stand for?

Back

LCM stands for Least Common Multiple, which is the smallest number that is a multiple of two or more numbers.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple they have in common.

Front

What is the GCF of 12 and 36?

Back

The GCF of 12 and 36 is 12.

Front

What is the LCM of 4 and 5?

Back

The LCM of 4 and 5 is 20.

Front

If a number is a factor of another number, what does that mean?

Back

It means that the first number can be multiplied by an integer to get the second number.

Front

What is an example of finding the GCF using prime factorization?

Back

For 18 (2 x 3 x 3) and 24 (2 x 2 x 2 x 3), the GCF is 6 (2 x 3).

Front

What is an example of finding the LCM using prime factorization?

Back

For 6 (2 x 3) and 8 (2 x 2 x 2), the LCM is 24 (2 x 2 x 2 x 3).

Front

How can GCF be used in real-life situations?

Back

GCF can be used to determine how to evenly distribute items, like sharing candies among friends.