is 2 3089027 - 1
has 929890 decimal digits
takes 0.263 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26819.295767.6471%10500001164471000.90557.4866%20.201270.0692%2.4221%
PrimeNet2600.049763.3333%120002200000.00292.5287%0.052664.2605%0.9272%
GPU722641.152265.6250%140002400000.00321.5061%1.155566.1427%0.5177%
Difference+4+18.1434+2.0221%+1036000+116207100+0.9022+5.9805%+19.0457+3.9265%+3.9265%

Known prime factors (3 factors, 157.7 bits, 0.00510468% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3089027895817831929.739145
5 × 29
-5292.388e-117.784e-71.256e-6
3089027651135134425462731755.85410539485968
24 × 11 × 59883443
2015-07-2116598834430.00160.40260.7520
308902750354434978056175853832272.093815053331972433
3 × 604787 × 449223353
2018-07-12604787449223353589.283.09105.6414

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3089027583298463808911453959938632685.592
3089027451084007232728160495325636427331101.831
308902732787541788354830497482432135350592755939127.946
308902729371664568665885314627363316094466427154650452948157.685
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-01-07T11:57:36Jocelyn LaroucheManual testing1050000116447100-
skipped known factor: 895817831
skipped known factor: 65113513442546273
--0.905--7.487%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2015-02-19T12:03:00TJAOIManual testing255256*55.854172.95960e-50.5816.53631e-5
2022-03-15T22:34:36LordJuliusManual testing2126255.854170.0020.5810.003
2022-03-15T22:34:36LordJuliusManual testing2126229.73992.38799e-110.5845.30214e-11
2022-03-15T22:34:36LordJuliusManual testing262263--0.318--
2022-03-15T22:34:36LordJuliusManual testing263264--0.636--
2022-03-15T22:34:36LordJuliusManual testing264265--1.210--
2022-03-15T22:34:36LordJuliusManual testing265266--2.419--
2022-03-15T22:34:36LordJuliusManual testing266267--4.838--
2021-06-20T23:51:56Jocelyn LaroucheManual testing267268--9.68--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.233 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:0.233 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.233


Lucas-Lehmer results:
No L-L results for M3089027


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-29T09:42:15Oliver KruseGTX-0
895817831
65113513442546273
964060521D7D98__no
2017-12-11T09:17:38ATHec2-1xf
895817831
65113513442546273
964060521D7D98__no
2018-07-15T01:34:26Martin RussellThunderChoad
895817831
65113513442546273
5035443497805617585383
964060521D7D98__no


P-1 factor-bounds graph:
B1 = 1050000, B2 = 116447100 (P-1 stage 2)
B1 = 1050000 (P-1 stage 1)
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TF factor-bounds graph:
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263
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256
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2100
Last modified: 2022-03-15T22:34:36+00:00