is 2 76106587 - 1
has 22910366 decimal digits
takes 211.804 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27450.269863.5135%690000129375005.47714.0895%55.746965.0056%1.4921%
PrimeNet2703.139761.4286%320000140000004.29895.5673%7.438663.5760%2.1474%
GPU7227450.269863.5135%500000180000005.86514.1905%56.135065.0425%1.5290%
Difference---+190000-5062500-0.3881-0.1010%-0.3881-0.0368%-0.0368%

Known prime factors (1 factor, 90.9 bits, 0.00011939% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7610658722537062115485449271163763832890.86414806249369378138893
3 × 13 × 31 × 46489 × 366733 × 718321
2015-04-283667337183216,527,2311.55723.0118

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2015-04-29T01:35:00Jwb52zClay690000129375002890.8645.477423.610.954.090%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-10T00:00:00ANONYMOUSv4_computers21253--1.57664e-5--
2003-10-08T00:00:00markrv4_computers21262--0.008--
2008-03-03T00:00:001997rj7v4_computers21264--0.047--
2010-08-31T14:15:00tmorrowMordor264265--0.049--
2010-10-31T11:40:00DinKeyToyPhenom_II_955265266--0.098--
2010-11-05T13:27:00seekuaseekua-home266267--0.196--
2010-11-08T18:56:00seekuaseekua-home267268--0.393--
2010-11-14T02:18:00seekuaseekua-home268269--0.786--
2010-11-28T16:00:00enricofenricof269270--1.571--
2012-06-10T21:46:00DRHManual testing270271--3.142--
2012-06-10T21:46:00DRHManual testing271272--6.284--
2012-06-10T21:46:00DRHManual testing272273--12.57--
2015-04-27T09:00:00Tim SorberaManual testing273274--25.14--


ECM factoring results:
No ECM results for M76106587


Lucas-Lehmer results:
No L-L results for M76106587


PRP results:
No PRP results for M76106587


P-1 factor-bounds graph:
B1 = 690000, B2 = 12937500 (P-1 stage 2)
B1 = 690000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2015-04-29T01:35:00+00:00