LCM of given array elements in python; Through this tutorial, i am going to show you how to find and print LCM of given array elements in python.

**LCM** is the **lowest multiple of two or more numbers**. Multiples of a number are those numbers which when divided by the number leave no remainder.

### Python program to find the LCM of the array

- Import the math module in program to find the GCD of two numbers using math.gcd() function.
- Find the LCM of initial two numbers using:
**LCM(a,b) = a*b/GCD(a,b)**. - Find the LCM of three numbers with the help of LCM of first two numbers using
**LCM(ab,c) = lcm(lcm(a1, a2), a3)**. The same concept to have implemented.

# Python program to find the LCM of the array elements # import math module import math # function to calculate LCM def LCMofArray(a): lcm = a[0] for i in range(1,len(a)): lcm = lcm*a[i]//math.gcd(lcm, a[i]) return lcm # array of integers arr1 = [1,2,3,4] arr2 = [2,3,4,5] arr3 = [3,4,5,6] arr4 = [2,4,6,8,10] arr5 = [8,4,12,40,26,28,30] print("LCM of arr1 elements:", LCMofArray(arr1)) print("LCM of arr2 elements:", LCMofArray(arr2)) print("LCM of arr3 elements:", LCMofArray(arr3)) print("LCM of arr4 elements:", LCMofArray(arr4)) print("LCM of arr5 elements:", LCMofArray(arr5))

**Output**

LCM of arr1 elements: 12 LCM of arr2 elements: 60 LCM of arr3 elements: 60 LCM of arr4 elements: 120 LCM of arr5 elements: 10920

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