Finding GCF

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest positive integer that divides all the given 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

GCF of 10 and 12?

Back

2

Front

GCF of 4 and 10?

Back

2

Front

GCF of 3 and 15?

Back

3

Front

GCF of 4 and 6?

Back

2

Front

GCF of 4 and 16?

Back

4

Front

What is a factor?

Back

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

Front

What is the relationship between GCF and LCM?

Back

The GCF (Greatest Common Factor) is the largest factor shared by two or more numbers, while the LCM (Least Common Multiple) is the smallest multiple shared by those numbers.

Front

Can the GCF of two prime numbers be greater than 1?

Back

No, the GCF of two prime numbers is always 1, as they have no common factors other than 1.