The Factorial of a number refers to the product of a given series of consecutive whole numbers start with 1 and ending with the specified number
“!” operator will use for represents the factorial
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#include<stdio.h>
int main(){
int i,f=1, num;
printf("Enter a number: ");
scanf("%d", &num);
for(i=1;i<=num;i++)
f = f * i;
printf("%d! = %d\n", num, f);
return 0;
}
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Output:
C program to print Factorial of a given range
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#include<stdio.h>
int main(){
long f=1;
int i,num,min,max;
printf("Enter a min range: ");
scanf("%d",&min);
printf("Enter a max range: ");
scanf("%d",&max);
printf("Factorial series in given range: ");
for(num=min;num<=max;num++){
f=1;
for(i=1;i<=num;i++)
f=f*i;
printf("%ld ",f);
}
return 0;
}
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Output
C Program to find the factorial of a given number with recursion function
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#include<stdio.h>
int Factorial(int i){
int result = 1;
while (i > 0) {
result = result * i;
i = i-1;
}
return(result);
}
int main(){
int i,factorial,num;
printf("Enter a natural number: ");
scanf("%d",&num);
factorial = Factorial(num);
printf("%d! = %d\n", num, factorial);
return 0;
}
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Output