LCM

Front

What is the Least Common Multiple (LCM)?

Back

The LCM of two or more numbers is the smallest multiple that is exactly divisible by each of the numbers.

Front

How do you find the LCM of two numbers?

Back

You can find the LCM by listing the multiples of each number and identifying the smallest common multiple.

Front

What is the LCM of 4 and 5?

Back

20

Front

What is the LCM of 6 and 8?

Back

24

Front

Is the LCM of two numbers always greater than or equal to the larger number?

Back

Yes, the LCM is always greater than or equal to the largest number.

Front

What is the relationship between LCM and GCD (Greatest Common Divisor)?

Back

The product of the LCM and GCD of two numbers is equal to the product of the numbers.

Front

What is the LCM of 1 and any number?

Back

The LCM is the other number, since 1 is a factor of every number.

Front

If two numbers are prime, what is their LCM?

Back

The LCM of two prime numbers is their product.

Front

What is the LCM of 3 and 7?

Back

21

Front

How can you use prime factorization to find the LCM?

Back

List the prime factors of each number, take the highest power of each prime, and multiply them together.