is 2 62092883 - 1
has 18691821 decimal digits
takes 145.861 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
Actual27330.806264.3836%585000108225003.89244.1591%34.698665.8649%1.4813%
PrimeNet2703.848362.8571%260000120000003.06435.1435%6.912664.7676%1.9105%
GPU7227461.615264.8649%400000130000003.70073.7225%65.315966.1728%1.3079%
Difference-1-30.8090-0.4813%+185000-2177500+0.1917+0.4366%-30.6173-0.3079%-0.3079%

Known prime factors (1 factor, 86.5 bits, 0.00013939% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
620928831131961268903413440171862092786.549911506451474811888
24 × 32 × 401 × 683 × 2819 × 8198551
2013-04-2428198198551441,8421.53052.8417

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-04-24T05:58:00Jwb52zClay585000108225002786.5493.892291.77.7854.159%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-06-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-10-18T00:00:00ANONYMOUSv4_computers21261--0.005--
2022-03-29T23:12:45LordJuliusManual testing261263--0.021--
2008-12-28T20:09:00DerekDerek_Desk263264--0.032--
2009-08-11T06:37:00Sturle Sundecelair.ifi264265--0.060--
2009-08-12T09:55:00Prime HunterWork4265266--0.120--
2009-08-13T13:07:00Prime HunterWork4266267--0.241--
2009-08-17T01:01:00JudgeGabranthMidgardsormr267268--0.481--
2009-08-18T21:10:00Sturle Sundegonsha.ifi268269--0.963--
2012-07-20T22:52:00Craig MeyersManual testing269273--28.88--


ECM factoring results:
No ECM results for M62092883


Lucas-Lehmer results:
No L-L results for M62092883


PRP results:
No PRP results for M62092883


P-1 factor-bounds graph:
B1 = 585000, B2 = 10822500 (P-1 stage 2)
B1 = 585000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-29T23:12:45+00:00