LCM and GCF

Front

What is the definition of factors in mathematics?

Back

Factors are numbers that divide another number evenly, without leaving a remainder.

Front

List all the factors of 12.

Back

1, 2, 3, 4, 6, 12

Front

What is the definition of the Least Common Multiple (LCM)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of 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 identify the smallest common multiple.

Front

What is the LCM of 3 and 5?

Back

15

Front

What is the definition of the Greatest Common Factor (GCF)?

Back

The 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 common factor.

Front

What is the GCF of 8 and 20?

Back

4

Front

What is the least common multiple (LCM) of 5 and 20?

Back

20

Front

If Avery receives newsletters every 5, 10, and 8 days, how do you determine when he will receive all three newsletters on the same day again?

Back

Find the LCM of the three intervals (5, 10, and 8) to determine when all newsletters will coincide.