How to Find the Greatest Common Factor for 16 and 40

You can find the greatest common factor (GCF) of 16 and 40 by listing the common factors for each number and then identifying the greatest factor in each list. Here's the step-by-step process: Step 1: List the Factors of 16 • The factors of 16 are the numbers that can evenly divide 16. In this case, they are 1, 2, 4, 8, and 16. Step 2: List the Factors of 40 • The factors of 40 are the numbers that can evenly divide 40. In this case, they are 1, 2, 4, 5, 8, 10, 20, and 40. Step 3: Identify the Common Factors • Compare the lists of factors for 16 and 40 to find the common factors. The common factors are the numbers that appear in both lists. Common Factors: 1, 2, 4, 8 Step 4: Determine the Greatest Common Factor • Finally, determine which common factor is the greatest. In this case, the greatest common factor (GCF) of 16 and 40 is 8. So, the GCF of 16 and 40 is 8.