GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 71, 81, 13, 25 i.e. 1 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 71, 81, 13, 25 is **1**.

GCF(71, 81, 13, 25) = 1

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

- Greatest Common Factor of 71, 81, 13, 25 by common division method
- Greatest Common Factor of 71, 81, 13, 25 with matching the biggest common factor

∴ GCF of numbers is 1 because of no common factors present between them.

**Factors of 71**

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

**Factors of 81**

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

**Factors of 13**

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

**Factors of 25**

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

**Greatest Common Factor**

We found the factors 71,81,13,25 . The biggest common factor number is the **GCF** number.

So the **greatest common factor 71,81,13,25 ** is **1**.

Here are some samples of GCF of two or more Numbers calculations.

1. What is the GCF of 71, 81, 13, 25?

Answer: GCF of 71, 81, 13, 25 is 1.

2. How to Find the GCF of 71, 81, 13, 25

Answer: Greatest Common Factor(GCF) of 71, 81, 13, 25 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(71, 81, 13, 25) = 1.