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Greatest Common Divisor (GCD) calculator - solves GCD for given numbers, but also displays prime dividers (in a school-like way). So, you know how the solution is found. It can find the GCD for 3 numbers too !

Some facts

**Greatest Common Divisor**is the largest positive integer that divides two or more numbers without remainder**Greatest Common Divisor (GCD)**is also known as**Greatest Common Factor (GCF)**and**Highest Common Factor (HCF)****GCD**is mainly useful for reducing fractions to be in**lowest terms**possible.

How to use this tool

To search for **greatest common divisor** or **least common multiplier** enter your numbers into fields below.

You can enter 2 or 3 integer numbers. If you need only 2 of them - just leave 3rd field empty!

All numbers should be non-zero integer (so you can use negative numbers).

You can enter 2 or 3 integer numbers. If you need only 2 of them - just leave 3rd field empty!

All numbers should be non-zero integer (so you can use negative numbers).

Enter number #1 | Enter number #2 | Enter number #3 optional (leave empty) |

GCD prime factors:

Least common multiple (LCM):

LCM prime factors:

Processing time (performance): ms

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