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Find the highest common factor of 25 and 36.

Sagot :

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.