GCD (Greatest Common Divisor)

[Former user]

Originally reported on Google Code with ID 48

A GCD function should be available according to the definition in
http://en.wikipedia.org/wiki/Greatest_common_divisor .

The function can take any (integer, even negative) arguments (minimum 2).

E.g. gcd( 4; -8; 144; 48 ) should return 4.

Reported by helder.pereira.correia on 2007-06-10 23:56:37