# GCD of 7, 9 and 11

You have reached us maybe looking for answers to the questions like: GCD of 7, 9 and 11 or what is the highest common factor (HCF) of 7, 9 and 11?

## What is the GCF of 7, 9 and 11?

The first step to find the gcf of 7, 9 and 11 is to list the factors of each number. The factors of 7 are 1 and 7. The factors of 9 are 1, 3 and 9. The factors of 11 are 1 and 11. So, the **Greatest Common Factor** for these numbers is 1 because it divides all them without a remainder. Read more about Common Factors below.

To use the GCD / GCF / HCF Calculator below just enter a set of numbers separated by commas (,).

### See also:

## How to find the Greatest Common Factor

### GCF example:

The first step is to find all divisors of each number. For instance, let us find the gcf(7,9,11).

In this case we have:

- The factors of 7 (all the whole numbers that can divide the number without a remainder) are 1 and 7;
- The factors of 9 are 1, 3 and 9;
- The factors of 11 are 1 and 11.

The second step is to analyze which are the common divisors. It is not difficult to see that the 'Greatest Common Factor' or 'Divisor' for 7, 9 and 11 is 1. The GCF is the largest common positive integer that divides all the numbers (7,9,11) without a remainder.

The GCF is also known as:

- Greatest common divisor (gcd);
- Highest common factor (hcf);
- Greatest common measure (gcm), or
- Highest common divisor

To learn more about GCF/GCD, watch this video from Khan Academy or/and read this arcticle.

### Greatest Common Factor Calculator

Please link to this page! Just right click on the above image, choose copy link address, then past it in your HTML.