is 2 3659501 - 1
has 1101620 decimal digits
takes 0.384 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LBA6EEDE9F473E8C5double-checked
PRP56455701A272609Averified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27065.296068.5714%300000006000000009.298110.3769%74.594171.8327%3.2613%
PrimeNet2600.042063.3333%160003200000.00503.0778%0.046964.4618%1.1285%
GPU722640.972665.6250%220004000000.00652.0372%0.979166.3253%0.7003%
Difference+6+64.3233+2.9464%+29978000+599600000+9.2916+8.3397%+73.6150+5.5075%+5.5075%

Known prime factors (1 factor, 70.2 bits, 0.00191932% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
365950113918644577234664658072270.238190171345454403
3 × 63390448484801
2020-12-1936339044848480180.614525,963982,352

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-08T05:50:00Carsten Kossendeyleela20000250000---0.005--0.713%
2012-02-02T21:19:00Squeeky_SquirrelP4_2600900001642500---0.027--1.878%
2016-06-18T21:49:05Jocelyn LaroucheManual testing10800032850006---0.043--2.306%
2016-12-29T20:13:49Jocelyn Larouchelow 4M129600129600---0.020--0.775%
2017-01-30T01:30:55Jocelyn Larouchelow 4M167520167520---0.026--0.898%
2017-03-07T20:00:43Jocelyn Larouchelow 4M24122824122806---0.055--2.478%
2020-09-23T16:56:47axnManual testing3000000060000000012---9.298--10.377%
2022-03-04T04:19:00Jocelyn LaroucheManual testing9000090000---0.014--0.621%
2022-03-22T11:09:23Jocelyn LaroucheManual testing100000100000---0.015--0.663%
2022-05-25T14:14:12Jocelyn LaroucheManual testing100000130364850---1.096--4.364%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-21T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-07-29T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-08-09T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-09-06T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-09-13T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-09-27T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-10-18T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-10-29T00:00:00Bjørn Skogv4_computers21260--0.042--
1998-11-14T00:00:00Bjørn Skogv4_computers21260--0.042--
2009-03-09T16:55:00S485122USB-Z260261--0.042--
2011-05-07T16:27:00markroldgamer261262--0.084--
2012-06-05T02:31:00GrunwalderGIMPManual testing21263--0.436--
2016-02-23T16:29:35Mark RoseManual testing262263--0.268--
2015-01-23T13:17:00VictordeHollanderManual testing263264--0.536--
2015-01-23T13:17:00VictordeHollanderManual testing264265--1.021--
2015-10-21T10:28:03ramgeisManual testing265266--2.042--
2016-12-30T23:58:45Gordon SpenceManual testing266267--4.084--
2019-01-07T14:44:09TJAOIManual testing267268--8.168--
2020-11-10T01:26:29axnManual testing268269--16.34--
2020-11-21T07:50:15axnManual testing269270--32.67--


ECM factoring results:

Old Calculation Method

Total ECM effort:3.272 GHz-days
Estimated T-Level:1.100
DigitsB1CurvesCompleteFacMiss
201100022 / 1000.22080.163%
255000022 / 2800.07992.431%

New Calculation Method

Total ECM effort:3.272 GHz-days
Estimated T-Level:1.100
DigitsB1CompleteFacMiss
20110000.84642.906%
25500000.07892.469%
302500000.00599.507%


ECM Summary

B1B2factorcurvesGHz-days
500005000000162.379
50000500000060.892


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-09-06T00:00:00Bjørn Skogv4_computersBA6EEDE9F473E8C50.384
1998-09-13T00:00:00Bjørn Skogv4_computersBA6EEDE9F473E8C50.384
1998-09-27T00:00:00Bjørn Skogv4_computersBA6EEDE9F473E8C50.384
1998-10-18T00:00:00Bjørn Skogv4_computersBA6EEDE9F473E8C50.384
1998-10-29T00:00:00Bjørn Skogv4_computersBA6EEDE9F473E8C50.384
1998-11-14T00:00:00Bjørn Skogv4_computersBA6EEDE9F473E8C50.384
1999-09-30T00:00:00ANONYMOUSv4_computersBA6EEDE9F473E8C50.384


PRP results:
dateuseridcompidcofactorsres64PRP
2020-12-19T16:40:25Niels_Mache_Nextcloudconf4-a
1391864457723466465807
56455701A272609Ano


P-1 factor-bounds graph:
B1 = 30000000, B2 = 600000000 (P-1 stage 2)
B1 = 30000000 (P-1 stage 1)
B1 = 100000, B2 = 130364850 (P-1 stage 2)
B1 = 241228, B2 = 2412280 (P-1 stage 2)
B1 = 108000, B2 = 3285000 (P-1 stage 2)
B1 = 241228 (P-1 stage 1)
B1 = 90000, B2 = 1642500 (P-1 stage 2)
B1 = 167520 (P-1 stage 1)
B1 = 129600 (P-1 stage 1)
B1 = 108000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 20000, B2 = 250000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-05-25T14:14:12+00:00