Algebra 1A Greatest Common Factor

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

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

Front

What are the factors of 16?

Back

1, 2, 4, 8, 16

Front

What are the factors of 24?

Back

1, 2, 3, 4, 6, 8, 12, 24

Front

What are the common factors of 16 and 24?

Back

1, 2, 4, 8

Front

What is the GCF of 42, 98, and 182?

Back

14

Front

What are the factors of 48?

Back

1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Front

What is the divisibility rule for 2?

Back

A number is divisible by 2 if its last digit is even.

Front

What is the divisibility rule for 3?

Back

A number is divisible by 3 if the sum of its digits is divisible by 3.

Front

What is the divisibility rule for 4?

Back

A number is divisible by 4 if the last two digits form a number that is divisible by 4.