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The Least Common Multiple (LCM) of two numbers is the smallest positive integer that is divisible by both numbers. Below is a Python implementation to calculate the LCM using the Greatest Common Divisor (GCD).
Example Code
import math# Function to compute LCMdef compute_lcm(x, y):return abs(x * y) // math.gcd(x, y)# Example usagenum1 = 12num2 = 15print("The L.C.M. is", compute_lcm(num1, num2))Cóipeáilte!✕CóipeáilOutput:
The L.C.M. is 60Cóipeáilte!✕CóipeáilExplanation:
The math.gcd() function computes the greatest common divisor of two numbers.
The formula LCM(a, b) = abs(a * b) // GCD(a, b) is used to calculate the LCM efficiently.
Alternative Using NumPy:
If you are working with arrays or multiple numbers, you can use NumPy's lcm.reduce() method.
import numpy as np# Array of numbersarr = np.array([3, 6, 9])result = np.lcm.reduce(arr)print("The L.C.M. of the array is", result)Cóipeáilte!✕CóipeáilOutput:
The L.C.M. of the array is 18Cóipeáilte!✕CóipeáilConsiderations:
Built-in module to calculate the least common multiple
There is one disadvantage on having imports inside functions: Any missing module will only be discovered when such function is executed. Having all imports unconditionally at the top of a module …
Python Program to Find LCM of Two Numbers - GeeksforGeeks
23 Iúil 2025 · We are given two numbers and our task is to find the LCM of two numbers in Python. In this article, we'll discuss different approaches to finding the LCM of two numbers in Python.
math — Mathematical functions — Python 3.14.2 documentation
1 day ago · Return the least common multiple of the specified integer arguments. If all arguments are nonzero, then the returned value is the smallest positive integer that is a multiple of all arguments.
Python Program to Find LCM
The function returns the L.C.M of two numbers. In the function, we first determine the greater of the two numbers since the L.C.M. can only be greater than or equal to the largest number.
Python 3 Built-in Module for Calculating the Least Common Multiple
23 MFómh 2024 · To calculate the least common multiple (LCM) of two numbers using Python’s built-in modules, we can utilize the math module. The math module provides a function called gcd () which …
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Python math.lcm () Method - Online Tutorials Library
The Python math.lcm () method is used to calculate the least common multiple (LCM) of two or more integers. Mathematically, the least common multiple of two integers "a" and "b", denoted as lcm (a,b), …
Find LCM Of Two Numbers In Python - Unstop
Python Program To Find LCM Of Two Numbers | 5 Methods With Examples To find the LCM of two numbers in Python, we can use the LCM formula inside a for loop, a while loop, or a recursive …
NumPy ufuncs - LCM - Lowest Common Multiple - W3Schools
Finding LCM in Arrays To find the Lowest Common Multiple of all values in an array, you can use the reduce() method. The reduce() method will use the ufunc, in this case the lcm() function, on each …
Find GCD and LCM in Python: math.gcd(), lcm() | note.nkmk.me
12 Lún 2023 · This article explains how to find the greatest common divisor (GCD) and least common multiple (LCM) in Python.
Python Program to Find LCM (3 Different Ways)
Learn 3 different ways to find the LCM in Python. Explore methods using loops, GCD, and Prime Factorization with easy-to-follow examples.
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