Keep adding the digits till you are reduced to single digit. Then check if it is 3, 6 or 9
________________________________ From: richa gupta <richa.cs...@gmail.com> To: programming-puzzles <programming-puzz...@googlegroups.com>; algogeeks <algogeeks@googlegroups.com> Sent: Friday, 14 August, 2009 1:15:13 PM Subject: [algogeeks] Check divisibility by 3 can we check the divisibility of a given number by 3 withoutusing operators like '/' or '%'. I want the efficient solution to this problem .. can someone help ?? -- Richa Gupta (IT-BHU,India) See the Web's breaking stories, chosen by people like you. Check out Yahoo! Buzz. http://in.buzz.yahoo.com/ --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---