is 2 3552463 - 1
has 1069398 decimal digits
takes 0.373 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LCBC3A2B081C0750Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual272269.203069.4444%6000000769794610264.735310.9816%333.938372.7999%3.3555%
PrimeNet2600.043263.3333%150003000000.00462.9682%0.047964.4217%1.0883%
GPU722641.001965.6250%200003600000.00591.9206%1.007866.2852%0.6602%
Difference+8+268.2011+3.8194%+5980000+7697586102+64.7294+9.0610%+332.9305+6.5147%+2.6953%

Known prime factors:
No known factors for M3552463

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-07T04:47:00Carsten Kossendeyleela20000245000---0.005--0.515%
2011-12-02T10:56:00harleeP4_2600600001005000---0.017--1.143%
2014-08-11T01:34:00ANONYMOUSManual testing7806778067---0.012--0.417%
2014-11-19T23:20:00Jocelyn LaroucheManual testing9613496134---0.015--0.480%
2015-12-17T00:43:27HBendtzManual testing5000001200000012---0.172--3.209%
2022-04-29T10:25:43Jocelyn LaroucheManual testing500000130364850---1.154--4.876%
2022-06-29T16:02:39mikrMSI60000007697946102---64.74--10.982%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-10-14T05:10:52ArtyomPaxioo50000250000027--0.032
2021-10-14T05:26:55ArtyomPaxioo50000250000065--0.032


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-02-23T16:29:33Mark RoseManual testing21260--0.043--
2009-03-16T06:11:00S485122USB-Z260261--0.043--
2011-06-28T08:55:00Grant McCrackenthumper261262--0.086--
2012-06-20T01:21:00GrunwalderGIMPManual testing21263--0.449--
2016-02-23T16:29:33Mark RoseManual testing262263--0.276--
2015-01-30T19:15:00VictordeHollanderManual testing263264--0.553--
2015-01-30T19:15:00VictordeHollanderManual testing264265--1.052--
2016-02-16T14:19:09YxinityManual testing265266--2.104--
2017-01-16T05:00:22Gordon SpenceManual testing266267--4.207--
2019-02-14T05:27:11YxinityManual testing267268--8.414--
2021-01-25T02:30:55axnManual testing268269--16.83--
2021-03-17T23:54:52-Anonymous-Manual testing269270--33.66--
2021-03-17T23:54:52-Anonymous-Manual testing270271--67.31--
2021-03-20T23:57:12-Anonymous-Manual testing271272--134.6--


ECM factoring results:
Total ECM effort:8.706 GHz-days
Estimated T-Level:21.032
DigitsB1CompleteFacMiss
20110002.22610.801%
25500000.20681.354%
302500000.01398.704%


ECM Summary

B1B2factorcurvesGHz-days
500005000000436.357
50000630000071.158
50000665000071.191


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-26T00:00:00ANONYMOUSv4_computersCBC3A2B081C0750C0.373


PRP results:
No PRP results for M3552463


P-1 factor-bounds graph:
B1 = 6000000, B2 = 7697946102 (P-1 stage 2)
B1 = 500000, B2 = 130364850 (P-1 stage 2)
B1 = 6000000 (P-1 stage 1)
B1 = 500000, B2 = 12000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 60000, B2 = 1005000 (P-1 stage 2)
B1 = 96134 (P-1 stage 1)
B1 = 78067 (P-1 stage 1)
B1 = 60000 (P-1 stage 1)
B1 = 20000, B2 = 245000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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1010
TF factor-bounds graph:
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Last modified: 2022-07-11T07:39:12+00:00