GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 81, 36, 55 i.e. 1 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 81, 36, 55 is **1**.

GCF(81, 36, 55) = 1

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

- Greatest Common Factor of 81, 36, 55 by common division method
- Greatest Common Factor of 81, 36, 55 with matching the biggest common factor

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

**Factors of 81**

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

1,3,9,27,81

**Factors of 36**

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

**Factors of 55**

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

**Greatest Common Factor**

We found the factors 81,36,55 . The biggest common factor number is the **GCF** number.

So the **greatest common factor 81,36,55 ** is **1**.

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

1. What is the GCF of 81, 36, 55?

Answer: GCF of 81, 36, 55 is 1.

2. How to Find the GCF of 81, 36, 55

Answer: Greatest Common Factor(GCF) of 81, 36, 55 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 36, 55) = 1.