Sure! To find the Highest Common Factor (HCF), also known as the Greatest Common Divisor (GCD), of 25 and 36, we can follow these steps:
1. List the factors of each number:
- Factors of 25: 1, 5, 25
- Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
2. Identify the common factors:
The common factors between 25 and 36 are the numbers that appear in the factor lists of both numbers. From the lists above:
- Common factors: 1
3. Determine the highest common factor:
The highest of the common factors is the Highest Common Factor (HCF). In this case, the only common factor between 25 and 36 is:
- HCF: 1
Therefore, the Highest Common Factor of 25 and 36 is 1.
