Write a program to calculate the factorial of a number

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Reference no: EM132155889

Use C only not C++

and write a little describtion to each step

Write a program to calculate the factorial of a number.

The factorial n! of a positive number (integer) is defined by n! = n * (n - 1)*(n - 2)*....*3*2*1, where 0! = 1.

In function main prompt the user for a negative integer less than 15 for which the factorial is to be found.

Use a while validation loop to assure the number entered is in the proper range.

Then call a function to calculate the factorial. The input to the function is the integer n and the return value is n factorial.

Use data type double for the factorial. In the function use a for loop to calculate the factorial.

Make provision for the situation in which n = 0. Return the value of n factorial to function main and print. Test with n = 14.

Reference no: EM132155889

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