find the greatest common divisor of a list of numbers in python

main.py
import math
from functools import reduce

def gcd_list(numbers):
    return reduce(math.gcd, numbers)
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main.py
def gcd(a, b):
    if a == 0:
        return b
    return gcd(b % a, a)

def gcd_list(numbers):
    result = numbers[0]
    for i in range(1, len(numbers)):
        result = gcd(result, numbers[i])
    return result
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main.py
def gcd_list(numbers):
    return reduce(lambda x, y: math.gcd(x, y), numbers)
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