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//program to create a function that returns factorial of a number passed to it as argument #include<iostream.h> #include<conio.h> int factorial(int); int factorial(int n) { int fact=1; int i; for(i=1;i<=n;i++) { fact=fact*i; } return fact; } void main() { int no; int fact; clrscr(); cout<<"enter number to calculate factorial for "; cin>>no; fact=factorial(no); cout<<"factorial of "<<no<<" is "<<fact; getch(); }