Write a C program to calculate a factorial of n

n!=n(n1)(n2)...1

5!=54321

3!=321

0!=1

The program should read a value of n from keyboard, and calculate the factorial of n and display the output as shown in an example below:

Enter the value of n: 7 The factorial of 7 = 5040

n!-n (n-1) (n-2) x 1 5! 5 x 4 x 3 x 2 x 1 01=1