is 2 62610367 - 1
has 18847599 decimal digits
takes 147.076 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
Actual27330.551664.3836%585000109687503.91964.1747%34.471165.8704%1.4869%
PrimeNet2703.816562.8571%260000120000003.06435.1488%6.880764.7696%1.9124%
GPU7227461.105964.8649%400000130000003.70073.7264%64.806766.1741%1.3093%
Difference-1-30.5544-0.4813%+185000-2031250+0.2189+0.4483%-30.3355-0.3037%-0.3037%

Known prime factors (1 factor, 99.2 bits, 0.00015851% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
626103677496994010528803571654204240013099.2425987022892334111036000
25 × 53 × 47 × 139 × 11243 × 26959 × 755879
2013-04-08269597558792.934e+90.22710.2620

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-04-08T10:57:00Jwb52zClay585000109687503099.2423.920294.27.8394.175%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-07-06T00:00:00ANONYMOUSv4_computers21259--0.001--
2022-03-30T01:49:02LordJuliusManual testing21263--0.025--
2009-01-30T09:40:00Wojciech FlorekManual testing263264--0.031--
2009-08-12T23:48:00ANONYMOUS264265--0.060--
2009-10-17T20:03:00ANONYMOUS265266--0.119--
2009-10-18T07:18:00Sturle Sundev22266267--0.239--
2009-10-21T07:42:00FCG PrimesRFTDELL_4_Office267268--0.477--
2009-10-27T06:57:00rhutson4997268269--0.955--
2011-12-13T06:41:00ITSMartinTwo269270--1.910--
2013-02-21T23:41:00Jerry HallettManual testing270271--3.819--
2013-02-21T23:41:00Jerry HallettManual testing271272--7.639--
2013-02-21T23:41:00Jerry HallettManual testing272273--15.28--


ECM factoring results:
No ECM results for M62610367


Lucas-Lehmer results:
No L-L results for M62610367


PRP results:
No PRP results for M62610367


P-1 factor-bounds graph:
B1 = 585000, B2 = 10968750 (P-1 stage 2)
B1 = 585000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-30T01:49:02+00:00