To find the GCF of 25 and 45, follow these steps:
Step 1: List the factors of each number
- Factors of 25: 1, 5, 25
- Factors of 45: 1, 3, 5, 9, 15, 45
Step 2: Identify the common factors
The common factors are: 1, 5
Step 3: Choose the greatest common factor
The largest number in the common factors is 5.
Final Answer:
The greatest common factor (GCF) of 25 and 45 is 5.
This means 5 is the largest number that evenly divides both 25 and 45.