is 2 3602803 - 1
has 1084552 decimal digits
takes 0.378 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L90C22BF8A9FA15C0double-checked
PRP6D11BEB5DA6E08__verified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26933.137268.1159%15000000100000000010.457111.4906%43.594371.7796%3.6637%
PrimeNet2600.042663.3333%150003000000.00462.9755%0.047364.4244%1.0910%
GPU722640.987965.6250%200004000000.00621.9807%0.994166.3059%0.6809%
Difference+5+32.1493+2.4909%+14980000+999600000+10.4509+9.5099%+42.6002+5.4737%+5.4737%

Known prime factors (1 factor, 70.4 bits, 0.00195454% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
360280315775711721928046433112270.418218936640747885
3 × 5 × 241 × 60563386099
2020-10-2724160563386099116.97502.51938.54

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-03T21:45:00Carsten Kossendeyleela20000245000---0.005--0.823%
2011-11-22T17:16:00markrtiny2400006120000---0.085--3.417%
2020-05-23T14:46:28axnManual testing1500000060000000012---7.138--10.771%
2020-07-28T13:37:32axnManual testing15000000100000000012---10.46--11.491%
2022-03-04T19:29:56Jocelyn LaroucheManual testing9000090000---0.014--0.716%
2022-03-22T11:09:30Jocelyn LaroucheManual testing100000100000---0.015--0.763%
2022-05-25T14:14:16Jocelyn LaroucheManual testing100000130364850---1.096--4.848%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-02-08T00:00:00RPardoev4_computers21260--0.043--
2009-03-12T16:38:00S485122USB-A260261--0.043--
2011-06-12T11:20:00markrManual testing21262--0.171--
2012-06-05T02:28:00GrunwalderGIMPManual testing21263--0.443--
2016-02-23T16:29:34Mark RoseManual testing262263--0.272--
2015-01-20T20:49:00VictordeHollanderManual testing263264--0.545--
2015-01-20T20:49:00VictordeHollanderManual testing264265--1.037--
2015-10-19T08:19:15ramgeisManual testing265266--2.074--
2016-12-21T02:23:31Gordon SpenceManual testing266267--4.148--
2019-02-11T13:34:44TJAOIManual testing267268--8.297--
2020-10-18T02:09:38axnManual testing268269--16.59--


ECM factoring results:

Old Calculation Method

Total ECM effort:2.224 GHz-days
Estimated T-Level:0.750
DigitsB1CurvesCompleteFacMiss
201100015 / 1000.15086.006%
255000015 / 2800.05494.775%

New Calculation Method

Total ECM effort:2.224 GHz-days
Estimated T-Level:0.750
DigitsB1CompleteFacMiss
20110000.57756.162%
25500000.05394.802%
302500000.00399.664%


ECM Summary

B1B2factorcurvesGHz-days
500005000000131.927
50000500000020.297


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-02-08T00:00:00RPardoev4_computers90C22BF8A9FA15C00.378
1999-07-27T00:00:00ANONYMOUSv4_computers90C22BF8A9FA15C00.378


PRP results:
dateuseridcompidcofactorsres64PRP
2020-10-27T16:08:53mrhx
1577571172192804643311
6D11BEB5DA6E08__no


P-1 factor-bounds graph:
B1 = 15000000, B2 = 1000000000 (P-1 stage 2)
B1 = 15000000, B2 = 600000000 (P-1 stage 2)
B1 = 15000000 (P-1 stage 1)
B1 = 100000, B2 = 130364850 (P-1 stage 2)
B1 = 240000, B2 = 6120000 (P-1 stage 2)
B1 = 240000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (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: 2022-05-25T14:14:16+00:00