**What is a Factorial of a number 'n'?**

The factorial of a number 'n' is the product of all number from 1 upto the number 'n'it is denoted by n!. For example n=5 then factorial of 5 will be 1*2*3*4*5= 120. 5!= 120

**Factorial program C++ Logic:**

- First think what is the factorial of a number? How mathematically it can be calculated.
- If you got this info then it will be very easier to make a
**C++ Program logic to find the factorial.** **User enters a number and we have to multiply all numbers upto entered number.****Like if user enters 6 then Factorial should be equal to factorial= 1*2*3*4*5*6.**- In this case a for Loop will be very helpful. It will start from one and multiply all numbers upto entered number after it loop will be terminated.
- Take a variable and initialized it to 1 and in loop store multiplication result into it like in below program a variable
**Factorial is used for this purpose.**what is we does not initialized it to 1 and initialized it to zero or remain it uninitialized. In case of 0 our result will be zero in case of any number entered- In case of not initializing it our answer will correct mostly but if variable contains garbage value then we will not be able to get correct result.
**It is recommended that to initialize it to one.**

C++ code to find prime number using for loopC++ code to find prime number using for loop

#include<iostream>

using namespace std;

int main()

{

int num,factorial=1;

cout<<" Enter Number To Find Its Factorial: ";

cin>>num;

for(int a=1;a<=num;a++)

{

factorial=factorial*a;

}

cout<<"Factorial of Given Number is ="<<factorial<<endl;

return 0;

}

Image View Of Program

If you have any query comment below. Thanks

Easy & nice programme .

ReplyDeleteyour program are going to help me a lot .

thank you !

Welcome Mohit Khandewal

Deleteif i input 34

Deletethe factorial is 0

Then take long int inplace of only int

DeleteFactorial of 34 is returning 0 because you should use long long int data type for factorial.

DeletePrevious example produces the correct answer until 12! = 479001600.

Using long long int will work until 20.

thank you so much

ReplyDeleteWelcom Kani.

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Find Palindrome Number in C++

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ReplyDelete*****

***

*

#include

#include

void main()

{

int a,b;

for(a=5;a>=1;a--)

{

for(b=1;b<=a;b++)

{

printf("*");

}

printf("\n");

}

getch();

}

can you provide me a program

DeleteQ: create a program on finding the roots of quadratic equation using for loop?

hello any one,,could u please help me with my situation..i need to make a coding base on formulae

ReplyDelete∑_(n=0)^m▒〖1/n!=1/0!+1/1!+1/2!+⋯….+1/n!〗....the question is,,ask user to enter the integer m,,then use the formulae,,i dont know

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ReplyDeleteThis comment has been removed by the author.

ReplyDeleteCan you help me to find a factorial of a number without using loop and if else

ReplyDeleteThis comment has been removed by the author.

ReplyDelete#include "stdafx.h"

ReplyDelete#include

using namespace std;

int factorial(int n)

{

cout<<"I am calculating: F("<>n;

int result = factorial(n);

cout<<result<<endl;

return 0;

}

can u give me a program on 0!=1 using for loop

Deletea linked queue program hw i can make function that deletes all my nodes

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ReplyDelete#include

ReplyDeleteint main()

{

int i, n, factorial=1;

printf("Enter Number to Find Factorial: ");

scanf("%d", &n);

for(i=1; i<=n; i++)

{

factorial=factorial*n--;

}

printf("Factorial: %d", factorial);

return 0;

}

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ReplyDeleteplz find the factorial of 5 in do while loop

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ReplyDeletethanks now it is easy to understand how factorial find

ReplyDeleteHow to write a program for the sum of this series

ReplyDeleteSum= 1/1! + 2/2! + 3/3! + 4/4! + 5/5! + 6/6!

Write a complete code to add first seven terms of the following series using nested loops.

Delete1/1! + 2/2! + 3/3! + …. 7/7!

If u have any idea about this please help me

Best Example (Y)

ReplyDeleteWrite a complete code to add first seven terms of the following series using nested loops.

ReplyDelete1/1! + 2/2! + 3/3! + …. 7/7!

Please help me fast

give me code for find fictorials of numbers 1 to 5 using for loop

ReplyDeletePlease help me out I can't find the answer of:

ReplyDelete2/2! - 3/3 + 4/4!

Please write complete code for this..

thank,s

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the*

ReplyDeletewhy we should take factorial=1 when declaring the variable ?

ReplyDeletei did it this way because , our teacher told to include zero factorial in the program. please correct the program.

ReplyDelete#include

using namespace std;

int main()

{

int n,i=0,factorial ;

cout<<"Enter a number"<<endl;

cin << n ;

cout << " factorial = n! "<<endl;

for(i=0; i<=n;i++ )

{

if (i=0)

factorial n = 1;

else

factorial = factorial* i;

}

cout<<"factorial of the number is = " <<factorial<<endl;

return 0;

}

Is it possible to do this program using while or do while??

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how to display maximum and minimum number in an array of 10 numbers

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