is 2 3582361 - 1
has 1078399 decimal digits
takes 0.376 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L7B39F61AA70D7F25double-checked
PRPADA8D020106C3A79PRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual271133.453469.0141%3000000900000001.17876.2668%134.632170.9559%1.9418%
PrimeNet2600.042963.3333%150003000000.00462.9726%0.047564.4233%1.0899%
GPU722640.993665.6250%200004000000.00621.9787%0.999866.3052%0.6802%
Difference+7+132.4598+3.3891%+2980000+89600000+1.1725+4.2881%+133.6324+4.6507%+1.2617%

Known prime factors (1 factor, 77.8 bits, 0.00217202% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
35823612648540969389893297733992477.81036966416413503459
3 × 12322138804501153
2021-06-3031232213880450115314,164102,239,182190,954,320

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-09T19:19:00Carsten Kossendeyleela20000245000---0.005--0.604%
2011-12-27T05:13:00Squeeky_SquirrelP4_2600850001593750---0.025--1.617%
2016-05-09T12:05:30Squeeky_SquirrelP4_2600225000658125012---0.087--2.763%
2020-01-30T17:16:04BigBrotherWinston30000009000000012---1.179--6.267%
2022-03-01T15:32:55Jocelyn LaroucheManual testing100000100000---0.015--0.571%
2022-05-24T21:50:18Jocelyn LaroucheManual testing100000130364850---1.096--3.901%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-02-23T16:29:34Mark RoseManual testing21260--0.043--
2009-03-14T21:58:00S485122USB-Z260261--0.043--
2011-06-19T13:35:00Grant McCrackenthumper261262--0.086--
2012-07-02T04:04:00GrunwalderGIMPManual testing21263--0.446--
2016-02-23T16:29:34Mark RoseManual testing262263--0.274--
2015-01-30T19:16:00VictordeHollanderManual testing263264--0.548--
2015-01-30T19:16:00VictordeHollanderManual testing264265--1.043--
2016-02-26T10:03:23ramgeisManual testing265266--2.086--
2017-01-20T05:22:18Gordon SpenceManual testing266267--4.172--
2018-10-01T11:53:15TJAOIManual testing267268--8.344--
2020-12-19T16:37:32axnManual testing268269--16.69--
2021-03-17T23:55:25-Anonymous-Manual testing269270--33.38--
2021-03-17T23:55:25-Anonymous-Manual testing270271--66.75--


ECM factoring results:
Total ECM effort:3.157 GHz-days
Estimated T-Level:4.071
DigitsB1CompleteFacMiss
20110000.81444.304%
25500000.07592.746%
302500000.00599.526%


ECM Summary

B1B2factorcurvesGHz-days
500005000000192.814
50000675000020.344


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-27T00:00:00ANONYMOUSv4_computers7B39F61AA70D7F250.376


PRP results:
dateuseridcompidcofactorsres64PRP
2021-07-01T06:54:13tottenhoff2018pc
264854096938989329773399
ADA8D020106C3A79no


P-1 factor-bounds graph:
B1 = 3000000, B2 = 90000000 (P-1 stage 2)
B1 = 100000, B2 = 130364850 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 225000, B2 = 6581250 (P-1 stage 2)
B1 = 225000 (P-1 stage 1)
B1 = 85000, B2 = 1593750 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 85000 (P-1 stage 1)
B1 = 20000, B2 = 245000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-05-24T21:50:18+00:00