is 2 3390061 - 1
has 1020511 decimal digits
takes 0.356 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
Actual26817.582267.6471%10500001116423001.07757.5144%18.659870.0782%2.4311%
PrimeNet2600.045363.3333%140002800000.00432.8457%0.049664.3768%1.0434%
GPU722641.049965.6250%180003200000.00521.7911%1.055266.2407%0.6157%
Difference+4+16.5323+2.0221%+1032000+111322300+1.0723+5.7233%+17.6046+3.8375%+3.8375%

Known prime factors (3 factors, 156.2 bits, 0.00460727% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
33900613714693241371238.43454788
22 × 13697
-4136972.008e-80.00010.0002
339006115344975514071340.481226323
32 × 25147
2008-09-309251478.588e-80.00020.0004
33900611827095477655736254377932477.27426947825977994736
24 × 21101 × 79817976571
2018-10-22211017981797657115,587662.271,236.9

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
33900615700187683110397034107592478.915
33900616787099222185455315748975644690964135115.708
339006128036735366495303628507312689812475136117.755
339006110414787137599935433266215171046763650668141488748156.189
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-01-20T15:08:32Jocelyn LaroucheManual testing33900633900616-
skipped known factor: 371469324137
skipped known factor: 1534497551407
--0.077--3.462%
2022-01-07T11:57:35Jocelyn LaroucheManual testing1050000111642300-
skipped known factor: 371469324137
skipped known factor: 1534497551407
--1.078--7.514%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-30T14:47:00markrManual testing??40.481134.26741e-80.7699.21261e-8
2021-08-06T11:21:46Jocelyn LaroucheManual testing267268--8.817--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.586 GHz-days
Estimated T-Level:0.200
DigitsB1CurvesCompleteFacMiss
20110004 / 1000.04096.060%
25500004 / 2800.01498.579%

New Calculation Method

Total ECM effort:0.586 GHz-days
Estimated T-Level:0.200
DigitsB1CompleteFacMiss
20110000.15485.740%
25500000.01498.587%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.440
50000500000010.147


Lucas-Lehmer results:
No L-L results for M3390061


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-05T19:04:18Oliver KruseGTX-2
371469324137
1534497551407
DA840C558448BF__no
2017-12-15T21:49:51kkmrkkblmbrbkc4.xlarge
371469324137
1534497551407
DA840C558448BF__no
2018-10-23T17:50:23treborLaptop
371469324137
1534497551407
182709547765573625437793
DA840C558448BF__no


P-1 factor-bounds graph:
B1 = 1050000, B2 = 111642300 (P-1 stage 2)
B1 = 1050000 (P-1 stage 1)
B1 = 339006, B2 = 3390061 (P-1 stage 2)
B1 = 339006 (P-1 stage 1)
100
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102
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104
105
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107
100
101
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109
1010
1011
TF factor-bounds graph:
268
2
230
240
250
260
270
280
290
2100
Last modified: 2022-01-07T11:57:35+00:00