Least common multiple

Python, Math, List · Nov 2, 2020

Returns the least common multiple of a list of numbers.

  • Use functools.reduce(), math.gcd() and lcm(x, y) = x * y / gcd(x, y) over the given list.
from functools import reduce
from math import gcd

def lcm(numbers):
  return reduce((lambda x, y: int(x * y / gcd(x, y))), numbers)
lcm([12, 7]) # 84
lcm([1, 3, 4, 5]) # 60

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