Warm-up #23 2nd Term*

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 or more numbers?

Back

To find the GCF, list the factors of each number, then identify the largest factor that appears in all lists.

Front

Find the GCF of 28 and 14.

Back

The GCF is 14.

Front

Find the GCF of 49 and 21.

Back

The GCF is 7.

Front

What are the factors of 28?

Back

The factors of 28 are 1, 2, 4, 7, 14, and 28.

Front

What are the factors of 49?

Back

The factors of 49 are 1, 7, and 49.

Front

What are the factors of 35?

Back

The factors of 35 are 1, 5, 7, and 35.

Front

What is the relationship between GCF and LCM?

Back

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

Front

Find the GCF of 28, 49, and 35.

Back

The GCF is 7.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.