The exact factorial of 87 is:

2107757298379527717213600518699389595229783738061356212322972511214654115727593174080683423236414793504734471782400000000000000000000

📌 Number of digits in the exact factorial of 87! = 133.

Approximately, the value of 87! can also be written as 2.107757298 E+132.

## How to calculate 87!

The formula for finding the factorial of a number is:

n! = n × (n-1) × (n-2) × … × 2 × 1

The same formula can also be written in terms of PI product notation as: So, by definition, 87! is calculated as:

87 × 86 × 85 × … × 2 × 1

Also see:

### How many digits are there in the exact value of 87!?

There are 133 digits in the exact value of 87!.

### What is the value of 87 factorial in terms of E?

The value of 87! in terms of E is 2.107757298 E+132.

### What are the uses of factorials?

According to Wikipedia:

In mathematical analysis, factorials are used in power series for the exponential function and other functions, and they also have applications in algebra, number theory, probability theory, and computer science.