NumPy Tutorial · NumPy ufunc

ufunc Finding LCM

Learn all about ufunc Finding LCM in this comprehensive tutorial.

5 min read advanced

•The Lowest Common Multiple is the smallest number that is a common multiple of two numbers.
•To find the Lowest Common Multiple of all values in an array, you can use the reduce() method.

Finding LCM (Lowest Common Multiple)

The Lowest Common Multiple is the smallest number that is a common multiple of two numbers.

python

import numpy as npnum1 = 4num2 = 6x = np.lcm(num1, num2)
print(val_1)

Note: Returns: 12 because that is the lowest common multiple of both numbers (4*3=12 and 6*2=12).

To find the Lowest Common Multiple of all values in an array, you can use the reduce() method.

Note: The reduce() method will use the ufunc, in this case the lcm() function, on each element, and reduce the array by one dimension.

python

import numpy as nparr = np.array([3, 6, 9])val_1 = np.lcm.reduce(arr)
print(val_1)

Note: Returns: 18 because that is the lowest common multiple of all three numbers (3*6=18, 6*3=18 and 9*2=18).

python

import numpy as nparr = np.arange(1, 11)val_1 = np.lcm.reduce(arr)
print(val_1)

2 questions

Which of the following is true about ufunc Finding LCM?

It is strictly typedIt is evaluated at runtimeIt requires explicit memory managementIt is deprecated

What is the most common pitfall when working with ufunc Finding LCM?

SyntaxErrorIndentationErrorNameErrorTypeError

Answer all questions to submit.