is 2 5594657 - 1
has 1684160 decimal digits
takes 0.883 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L2DDB3D050EA4DC7Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2675.311165.6716%5000050000000.07323.2245%5.384366.7786%1.1069%
PrimeNet2620.109862.9032%240005500000.01213.1703%0.121964.0793%1.1761%
GPU722662.639765.1515%360007000000.01652.1896%2.656365.9145%0.7630%
Difference+1+2.6714+0.5201%+14000+4300000+0.0567+1.0350%+2.7281+0.8640%+0.3439%

Known prime factors (1 factor, 67.3 bits, 0.00120311% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
55946571829307453558545891992167.31016348700676007
7 × 2335528668001
2015-08-02723355286680015.319229,13754,419

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-08-10T00:00:00ANONYMOUSv4_computers25000156250---0.007--1.114%
2011-01-05T23:18:00harleeP4_2600650001023750---0.027--2.413%
unknown500005000000---0.073--3.225%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-04-20T01:02:00GrunwalderGIMPManual testing262263--0.175--
2014-12-23T21:12:00NesowaManual testing263264--0.351--
2014-12-24T03:48:00monstManual testing264265--0.668--


ECM factoring results:
Total ECM effort:0.720 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000030.720


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-12-07T00:00:00ANONYMOUSv4_computers2DDB3D050EA4DC7E0.883


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:20:29kkmrkkblmbrbkManual testing
182930745355854589199
69201E1A8E70B0__no
2018-07-09T18:18:38Martin RussellThunderChoad
182930745355854589199
69201E1A8E70B0__no


P-1 factor-bounds graph:
B1 = 50000, B2 = 5000000 (P-1 stage 2)
B1 = 65000, B2 = 1023750 (P-1 stage 2)
B1 = 65000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
B1 = 25000, B2 = 156250 (P-1 stage 2)
B1 = 25000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-07-09T18:18:38+00:00