The Science Forum - Scientific Discussion and Debate
		Live Chat    FAQ    Search    Usergroups
	Register  ::  Log in	Log in to check your private messages
	Science Forum Forum Index » Mathematics » digits  digits « View previous topic :: View next topic »  Author Message parag1973 Posted: Sun Jun 29, 2008 5:59 am    Post subject: digits Forum Freshman Joined: 24 Feb 2008 Posts: 62 what is the maximum number of times the digit 3 repeats itself in a number which is a multiple of 7 Back to top serpicojr Posted: Sun Jun 29, 2008 8:34 am    Post subject: Forum Professor Joined: 17 Jul 2007 Posts: 1128 Location: JRZ Take any string of 3's (which I'll denote by 3...3). Append the digits 0 through 6 to the string: 3...30 3...31 3...32 3...33 3...34 3...35 3...36 Exactly one of these guys must be divisible by 7. So there is no maximum number of 3's you can have. Back to top JaneBennet Posted: Sun Jun 29, 2008 9:08 am    Post subject: Forum Ph.D. Joined: 06 Apr 2008 Posts: 874 Any integer consisting of only 3’s, where the number of 3’s is divisible by 6, is divisible by 7: 333 333 333 333 333 333 333 333 333 333 333 333 333 333 333 333 333 333 333 333 … etc _________________ Did You Know? Random Fact: Pablo Neruda Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First     Page 1 of 1 Science Forum Forum Index » Mathematics » digits Jump to: Select a forum Natural Sciences----------------Astronomy & CosmologyBiologyChemistryEarth SciencesMathematicsPhysics People----------------Behavioral & Social SciencesHealth & MedicinePhilosophical DiscussionHistoryReligionPoliticsCriminology and Forensic Science General Technology----------------Computer ScienceElectronicsMilitary Technology Information Technology----------------Business & EconomicsEducationEngineering & Transportation International Issues----------------Environmental IssuesIn the News The Science Forum----------------General DiscussionIntroductionsScience-Fiction and Non-FictionExperimentationPseudoscienceLinksArt and Culture Site Administration----------------Site FeedbackTrash Can  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
	Enter your search terms Submit search form   Web www.thescienceforum.com © 2004-2008 Thescienceforum.com Sponsored by EnluxLED Partner Forums Politics Forum  Radar Detector