30-seconds-of-code/snippets/gcd.md

title, tags, expertise, firstSeen, lastUpdated

title	tags	expertise	firstSeen	lastUpdated
Greatest common divisor	math	beginner	2018-01-08T16:26:35+02:00	2020-09-15T16:13:06+03:00

Calculates the greatest common divisor of a list of numbers.

• Use functools.reduce() and math.gcd() over the given list.

from functools import reduce
from math import gcd as _gcd

def gcd(numbers):
  return reduce(_gcd, numbers)

gcd([8, 36, 28]) # 4