Least Common Multiple

Front

What is the Least Common Multiple (LCM)?

Back

The Least Common Multiple (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

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

Front

What is the LCM of 3 and 5?

Back

The LCM of 3 and 5 is 15.

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What is the first multiple of 6?

Back

The first multiple of 6 is 6.

Front

List the first five multiples of 6.

Back

6, 12, 18, 24, 30.

Front

What is a prime number?

Back

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

Front

Is 9 a prime number?

Back

No, 9 is not a prime number because it can be divided by 1, 3, and 9.

Front

What is the prime factorization of 34?

Back

The prime factorization of 34 is 2 x 17.

Front

What is the LCM of 4 and 6?

Back

The LCM of 4 and 6 is 12.

Front

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

Back

The relationship is given by the formula: LCM(a, b) = (a * b) / GCD(a, b).