Zero Sink

Saturday, October 10, 2009

Three PRP palindromes

I've submitted these three PRP numbers to Henri Lifchitz' page but they're not showing up correctly there:

16909 digits:
(10^16442*10888181880080110100810100001011800181880108811011810000018\
111811088001100818101810088818811000008008001118811000088800888100080\
118011088011811181818100000008110888880100011111001810008100110881118\
180080818001111011080110880081800088110101811008118011011000081118801\
080008818010000000010011801110888111181111180808810001111008118080188\
000880800010001811810800811880818010818000811088080010181800088001808\
181808081081118801181080011880188088000080801018808118001180881)+(1880811008118088101080800008808810881100801811088111801808081818081\
008800081810100808801180008180108180881180080181181000100080880008810\
808118001111000188080811111811118880111081100100000000108188000801088\
111800001101108118001181010118800081800880110801101111008180800818111\
880110018000181001111100010888880118000000018181811181108801108110800\
018880088800001188111008008000001188188800181018180011008801181118100\
0001811011880108818100811010000101800101108008818188801)

(2^16559*5^16559*13*146777*570629221413337664034036982372096664792907\
126562577662294507041875037070931680336108456460690498459358342079952\
795412867982359430554833733214917963886607679997593884186424676209582\
721674592219233582503275141154006579322105071052323127030582291404805\
668620271207802997850156674620473445064585213827156486009450275892628\
3834560182128822321711901)+(23*7997333*54371391327801776069712349110417304286251815710536352236\
376861924387520956548237138180294757938900767354077599370239988543234\
996625195636612258230109246263009893424198562902489742518503893198329\
775798690682592239013828414982628468553138685282472947027845842955079\
323492350685236375937762007827837876163987256799660047597770081067080\
635332939)


16205 digits:
(10^15882*2621*3571*1076982763464771058704467086222163007103409869212\
107537699972026674155749018432653926991128019175070589089863862660324\
378278728205122518826817335086330248704363051847905406462827080914239\
523726924608010126512803926889667304916294750680677294668985950466018\
013167563818762817850500284682405461735334568572580982439491)+(7*229*347*977*2549*4093*3206466391664842348526443942464072147740231\
170749928327037185894396250936916913973177925993437770803966736450750\
689610949168526795595576933229622119418471732739840742449986627376729\
185393875514791265604671578774936779995468322536147740456654761112686\
940920445705576778759485079432825344780850196414186628449)


In base 10, these numbers are tetradic palindromes.

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