In Python, we can easily multiply all elements in a list. The easiest way to get the product of all items of a list is with a loop.

```
def multiplyNumbers(lst):
product = 1
for x in lst:
product = product * x
return product
print(multiplyNumbers([9,3,2,4])
#Output:
216
```

You can also use a lambda expression combined with the functools **reduce()** function.

```
from functools import reduce
list_of_numbers = [9,3,2,4]
product = reduce((lambda x,y: x*y), list_of_numbers)
print(product)
#Output:
216
```

If you are using numpy, you can use the numpy **prod()** function to multiply all elements in a list together.

```
import numpy as np
print(np.prod([9,3,2,4])
#Output:
216
```

One last way you can multiply all elements in a list together is with the math **prod()** function.

```
import math
print(math.prod([9,3,2,4])
#Output:
216
```

When working with lists of numbers, the ability to summarize the list and get certain statistics easily is valuable.

One such statistic is the product of all numbers in a list.

We can get the product of all numbers in a list easily in Python. TO get the product of numbers in a list, we can use a for loop and multiply each number by the cumulative product up to that point.

Below is an example of how to multiply all elements of a list together using a for loop in Python.

```
def multiplyNumbers(lst):
product = 1
for x in lst:
product = product * x
return product
print(multiplyNumbers([9,3,2,4])
#Output:
216
```

## Using a Lambda Expression to Get the Product of All Elements of a List in Python

Another way we can get the product of all items in a list in Python is with a lambda expression.

We can use a lambda expression combined with the **reduce()** function from the functools module to multiply all numbers of a list together.

Below is an example in Python of how to use a lambda expression and **reduce()** to multiply all numbers in a list together.

```
from functools import reduce
list_of_numbers = [9,3,2,4]
product = reduce((lambda x,y: x*y), list_of_numbers)
print(product)
#Output:
216
```

## Using Numpy to Multiply All Items of a List Together in Python

Another way you can get the product of all numbers in a list is with the numpy module.

The numpy module has a function called **prod()** which calculates the product of all numbers in a list.

Below is an example using numpy in Python of how to get the product of all items in a list.

```
import numpy as np
print(np.prod([9,3,2,4])
#Output:
216
```

## Using math.prod() to Multiply All Elements in a List Together in Python

The Python math module has many great functions which allow us to do both easy and complex calculations.

The math module’s **prod()** function is the same as the numpy **prod()** function and enables us to easily be able to get the product of all numbers in a list.

Below is an example using the math **prod()** function in Python of how to multiply all items in a list together and get the product of those numbers.

```
import math
print(math.prod([9,3,2,4])
#Output:
216
```

Hopefully this article has been useful for you to learn how to multiply all the elements of a list together using Python.

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