Write a Python function to multiply all the numbers in a list | Code

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The Python math module has math.prod() function, by using it you can write a Python function to multiply all the numbers in a list. Or you can use loop logic for the same.

Note: math.prod is a new function (from Python 3.8).

Python function to multiply all the numbers in a list

Simple example code Multiply all numbers in the list.

Using math.prod

import math

list1 = [1, 2, 3]

res = math.prod(list1)

print("Multiplication of List: ", res)

Output:

Write a Python function to multiply all the numbers in a list

Using for loop in user define a function

Python functions have to code to traverse the list and multiply each element.

def multiply(numbers):
    total = 1
    for x in numbers:
        total *= x
    return total


Lst = [8, 2, 3, -1, 7]

print(multiply(Lst))

Output: -336

Use functools.reduce() to multiply all values in a list

import functools
import operator

a_list = [2, 3, 4]

product = functools.reduce(operator.mul, a_list)

print(product)

Output: 24

Do comment if you have any doubts or suggestions on this Python multiplication code.

Note: IDE: PyCharm 2021.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.

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