To find the Greatest Common Factor (GCF) of 12 and 42, follow these steps:
Step 1: Find the Factors of Each Number
- Factors of 12: 1,2,3,4,6,12
- Factors of 42: 1,2,3,6,7,14,21,42
Step 2: Identify the Common Factors
The common factors of 12 and 42 are:
1,2,3,6
Step 3: Select the Greatest Common Factor
The greatest common factor is the largest number in the list of common factors:
GCF = 6
Final Answer:
The GCF of 12 and 42 is 6.