#2 Greatest Common Factor & Least Common Multiple

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

List the factors of each number and identify the largest factor they have in common.

Front

What is the Least Common Multiple (LCM)?

Back

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

Front

How do you find the LCM of two numbers?

Back

List the multiples of each number and identify the smallest multiple they have in common.

Front

What is the GCF of 25 and 100?

Back

25

Front

What is the GCF of 18 and 27?

Back

9

Front

If Raul has 6 oranges, 12 pears, and 18 bananas, how many fruit baskets can he make with the same number of each fruit?

Back

6 baskets with 1 orange, 2 pears, and 3 bananas in each.

Front

Two clocks chime together at noon. One chimes every 15 minutes, and the other every 20 minutes. When will they chime together again?

Back

12:45 PM

Front

Two trains leave a station at the same time. One train travels every 8 minutes, and the other every 12 minutes. After how many minutes will they both leave the station together again?

Back

24 minutes

Front

What is a factor?

Back

A factor is a whole number that can be divided evenly into another number.