Exercise 08-08:
Using the gcd function defined in the previous exercise, define a function to calculate the least
common multiple (LCM) between two numbers.
Where |a × b| can be written in Python as: abs(a * b).
Answer:
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# Python From Scratch
# Author: Nilo Ney Coutinho Menezes
# Editora Novatec (c) 2010-2025 - LogiKraft 2025
# Site: https://pythonfromscratch.com
# ISBN: 978-85-7522-949-1 (Paperback), 978-85-7522-950-7 (hardcover), 978-85-7522-951-4 (ebook)
#
# File: chapter 08/exercise-08-08.py.py
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def gcd(a, b):
if b == 0:
return a
return gcd(b, a % b)
def lcm(a, b):
return abs(a * b) / gcd(a, b)
print(f"LCM of 10 and 5 --> {lcm(10, 5)}")
print(f"LCM of 32 and 24 --> {lcm(32, 24)}")
print(f"LCM of 5 and 3 --> {lcm(5, 3)}")