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Write a Python program to find factorial of any number?
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Most Upvoted Answer
Write a Python program to find factorial of any number?
Import math
n=int (input("enter the number:"))
result=math.factorial (n)
print(" factorial of",n,"is",result)
Community Answer
Write a Python program to find factorial of any number?
Python Program to Find Factorial of any Number


Factorial is the product of all positive integers from 1 to the given number. Factorial of a number n is denoted by n!, and it is defined as:

n! = n * (n-1) * (n-2) * ... * 2 * 1


Approach


The factorial of a number can be calculated using a for loop. We can iterate from 1 to the given number and calculate the product of all the numbers.


Algorithm


  1. Take input from the user and store it in a variable.

  2. Initialize a variable to store the factorial value as 1.

  3. Use a for loop to iterate from 1 to the given number.

  4. Multiply the factorial value with the current number in each iteration.

  5. Print the factorial value.



Code


```python
# Python program to find factorial of a number

# take input from the user
num = int(input("Enter a number: "))

# initialize the factorial value as 1
factorial = 1

# iterate from 1 to the given number
for i in range(1, num+1):
# multiply the factorial value with the current number
factorial *= i

# print the factorial value
print("Factorial of", num, "is", factorial)
```

Output


```
Enter a number: 5
Factorial of 5 is 120
```

Thus, the factorial of the given number is calculated using a for loop in Python.
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Write a Python program to find factorial of any number?
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