GCF and LCM

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

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor (GCF) of two or more numbers is the largest number that divides each of the numbers without leaving a remainder.

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 that appears in both lists.

Front

What is a multiple?

Back

A multiple of a number is the product of that number and an integer. For example, multiples of 3 are 3, 6, 9, 12, etc.

Front

What is a factor?

Back

A factor of a number is a whole number that can be divided evenly into that number. For example, factors of 10 are 1, 2, 5, and 10.

Front

Is 43 an odd or even number?

Back

43 is an odd number because it cannot be divided evenly by 2.

Front

What is the LCM of 8 and 5?

Back

The LCM of 8 and 5 is 40.

Front

What is the LCM of 3 and 5?

Back

The LCM of 3 and 5 is 15.

Front

What is the GCF of 12 and 6?

Back

The GCF of 12 and 6 is 6.