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 2007-06-07, 17:44 #1 davar55     May 2004 New York City 5·7·112 Posts Initial Pattern Find a power of 2 whose decimal representation begins with the pattern 123454321.
 2007-06-07, 18:01 #2 fetofs     Aug 2005 Brazil 36210 Posts Hard... 2^70279608 = 123454321...256? Last fiddled with by fetofs on 2007-06-07 at 18:03
 2007-06-07, 18:12 #3 wblipp     "William" May 2003 Near Grandkid 3·7·113 Posts Easy ;) 2^(-3.017950762) = 0.123454321... :) Last fiddled with by wblipp on 2007-06-07 at 18:13 Reason: add winky
 2007-06-07, 18:12 #4 davar55     May 2004 New York City 5·7·112 Posts Yes, that's the value that my source for the problem gave. Well done.
 2007-06-07, 18:15 #5 fetofs     Aug 2005 Brazil 2·181 Posts Technically, it begins with a zero and a dot How did you find out that value wblipp? Last fiddled with by fetofs on 2007-06-07 at 18:16
 2007-06-07, 19:13 #6 alpertron     Aug 2002 Buenos Aires, Argentina 101110101002 Posts I'm not wblipp but, log 0.123454321/log 2
 2007-06-12, 00:00 #7 m_f_h     Feb 2007 24·33 Posts 26.879402092

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