Greatest Common Factor (GCF) Flashcard

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

1. List the factors of each number. 2. Identify the common factors. 3. The largest of these common factors is the GCF.

Front

What are factors?

Back

Factors are numbers that can be multiplied together to get another number.

Front

What is the GCF of 12 and 18?

Back

6

Front

What is the GCF of 18 and 27?

Back

9

Front

What is the GCF of 30 and 45?

Back

15

Front

If a teacher has 40 pencils and 60 erasers, what is the GCF?

Back

20 (the greatest number of students she can give supplies to).

Front

What are common factors?

Back

Common factors are numbers that are factors of two or more numbers.

Front

List the common factors of 56 and 84.

Back

1, 2, 4, 7, 8, 14, 28.

Front

Why is finding the GCF useful?

Back

Finding the GCF helps in simplifying fractions and solving problems involving equal distribution.