Is there any proof for this ? On Fri, Jun 27, 2008 at 7:29 AM, Arunachalam <arunachala...@gmail.com>wrote:
> What is the maximum value of number that you need to find out? > > A 32 bit number is prime if it satisfies the Fermat's theorem for 2,3,5,7 > and 11. This is the fastest way to find out whether a number is prime or > not. > > regards, > Arunachalam. > > On Fri, Jun 27, 2008 at 12:46 AM, rowdy ranga <aryansmit3...@gmail.com> > wrote: > >> >> >> hello sir, >> ya it is possible in o(n).dnt worry >> first we use a principle of sieve of erasthones >> printf("nter no"); >> scanf("%d",&num); >> if((num%2)==0||(num%3)==0||(num%5)==0||(num%7)==0) >> printf("notprime"); >> else >> int i=2; >> for(;i<num/2;i++) >> { >> if((num%i)==0) >> printf("not prime "); >> else printf("prime"); >> >> >> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/algogeeks -~----------~----~----~----~------~----~------~--~---