is 2 3083023 - 1
has 928083 decimal digits
takes 0.262 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27077.505368.5714%900000023050959750156.039714.2082%233.545073.0369%4.4654%
Target2641.154565.6250%140002200000.00311.4680%1.157666.1296%0.5046%
Difference+6+76.3508+2.9464%+8986000+23050739750+156.0366+12.7402%+232.3874+6.9072%+3.9608%

Known prime factors (1 factor, 127.0 bits, 0.00411950% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
308302317074964467498314037365974918979324052739127.00527691918723114154577124424499881
1163 × 1511 × 25819 × 35279 × 1376567 × 12567700751
2023-01-051376567125677007515.994e+1084.663157.83

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-02-14T00:00:00ANONYMOUSv4_computers2048204800---0.002--0.162%
2008-10-29T00:21:00Jayson Kingatlas40000640000---0.009--1.150%
2011-08-18T15:06:00harleeP4_26001000002125000---0.026--1.994%
2016-04-14T05:13:12Jocelyn LaroucheManual testing20000061889876---0.065--2.918%
2018-03-19T18:15:00mikrMSI300000010000000012---1.022--6.826%
2023-01-05T21:38:06Sid & AndyHockey_Puck90000002305095975039127.005156.00.525312.114.208%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-03-31T00:00:00ANONYMOUSv4_computers21259--0.025--
1998-07-05T00:00:00ANONYMOUSv4_computers21259--0.025--
1998-07-11T00:00:00ANONYMOUSv4_computers21259--0.025--
2001-07-03T00:00:00ANONYMOUSv4_computers21260--0.050--
2009-02-12T23:55:00Sturle Sundeeberlin.ifi260261--0.050--
2011-11-12T21:56:00Sid & AndyBuzz261262--0.100--
2013-01-07T13:56:00dbaughManual testing262263--0.318--
2015-02-07T18:28:00VictordeHollanderManual testing263264--0.637--
2015-02-07T18:28:00VictordeHollanderManual testing264265--1.212--
2015-06-08T12:39:00ThaManual testing265266--2.424--
2017-05-18T12:32:20Gordon SpenceManual testing266267--4.848--
2018-08-10T10:59:50ramgeisManual testing267268--9.70--
2021-03-10T09:10:08TJAOIManual testing268269--19.39--
2022-05-31T08:52:46mikrManual testing269270--38.78--


ECM factoring results:
Total ECM effort:91.724 GHz-days
Estimated T-Level:25.882
DigitsB1CompleteFacMiss
201100030.2150.000%
25500002.7966.108%
302500000.17683.832%
3510000000.00899.179%


ECM Summary

B1B2factorcurvesGHz-days
50000500000077890.78
50000675000070.943


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-30T00:00:00ANONYMOUSv4_computers705713D90FBB77__0.262
1999-09-22T00:00:00ANONYMOUSv4_computersB1DFECCDBD40DD__0.262


PRP results:
dateuseridcompidcofactorsres64PRP
2023-01-07T11:34:09LordJuliusWhiteBox
170749644674983140373659749189793240527
13967931F8BE0613no


P-1 factor-bounds graph:
B1 = 9000000, B2 = 23050959750 (P-1 stage 2)
B1 = 9000000 (P-1 stage 1)
B1 = 3000000, B2 = 100000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 200000, B2 = 6188987 (P-1 stage 2)
B1 = 100000, B2 = 2125000 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 40000, B2 = 640000 (P-1 stage 2)
B1 = 40000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
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1010
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TF factor-bounds graph:
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Last modified: 2023-01-07T11:34:09+00:00