LCM

Front

What is LCM?

Back

LCM stands for Least Common Multiple. It is the smallest multiple that two or more numbers have in common.

Front

How do you find the LCM of two numbers?

Back

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

Front

What is the LCM of 32 and 40?

Back

160

Front

What is the LCM of 4, 8, and 28?

Back

56

Front

What is the second step in finding the LCM?

Back

Identifying which multiples of the numbers that they have in common.

Front

What are multiples of a number?

Back

Multiples of a number are the results of multiplying that number by whole numbers (e.g., multiples of 7 are 7, 14, 21, 28, etc.).

Front

Which choice shows a multiple of 8?

Back

8

Tags

CCSS.4.OA.B.4

Front

What is the first multiple of any number?

Back

The first multiple of any number is the number itself.

Front

What is the relationship between LCM and GCD?

Back

The LCM of two numbers multiplied by their GCD (Greatest Common Divisor) equals the product of the two numbers.

Front

How can you use prime factorization to find the LCM?

Back

To find the LCM using prime factorization, break each number down into its prime factors, then take the highest power of each prime factor.