#bluepixy

[stuffedstuffings-blog]

Programming Problem 03

//Thank you BLUEPIXY for the tip (long long int num=600851475143LL)

//The prime factors of 13195 are 5, 7, 13 and 29.

//What is the largest prime factor of the number 600851475143 ?

//So, yea.. Here's my answer! Finally!

#include<stdio.h> #include<conio.h> main() {       long long int num=600851475143LL;       long factor=0,x,y;                 for(x=1;x<num;x++)           {               for(y=1;y<x;y++)               {   if(x%y==0)                      factor++;               }               if(factor<=2)               {                   if(num%x==0)                   printf("%ld ",x);               }               factor=0;           }

/*TheJanellenaj*/

getch(); }