Greatest Common Factor

Front

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

Back

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

Front

List all the factors of 12.

Back

1, 2, 3, 4, 6, 12

Front

What is the GCF of 20 and 30?

Back

10

Front

List all the factors of 25.

Back

1, 5, 25

Front

What is the GCF of 28 and 49?

Back

7

Front

If Sara has 16 red flowers and 24 yellow flowers, what is the greatest number of bouquets she can make with the same number of each color?

Back

8

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 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 prime factorization?

Back

The GCF can be found by multiplying the lowest powers of all prime factors common to the numbers.

Front

What is the GCF of 12 and 18?

Back

6