Integer.gcd

You're seeing just the function gcd, go back to Integer module for more information.
Link to this function

gcd(integer1, integer2)

View Source (since 1.5.0)

Specs

Returns the greatest common divisor of the two given integers.

The greatest common divisor (GCD) of integer1 and integer2 is the largest positive integer that divides both integer1 and integer2 without leaving a remainder.

By convention, gcd(0, 0) returns 0.

Examples

iex> Integer.gcd(2, 3)
1

iex> Integer.gcd(8, 12)
4

iex> Integer.gcd(8, -12)
4

iex> Integer.gcd(10, 0)
10

iex> Integer.gcd(7, 7)
7

iex> Integer.gcd(0, 0)
0