is 2 346627 - 1
has 104346 decimal digits
takes 0.003 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
Actual26785.723071.6418%50000500000.00070.4111%85.723771.7584%0.1166%
PrimeNet2400.000052.5000%34001000000.000116.2485%0.000160.2180%7.7180%
GPU722440.000056.8182%60001700000.000212.0272%0.000262.0118%5.1936%
Difference+23+85.7230+14.8236%+44000-120000+0.0005-11.6161%+85.7235+9.7466%+9.7466%

Known prime factors (3 factors, 155.3 bits, 0.04480476% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
346627585799631929.126845
5 × 132
-1691692.441e-102.376e-64.835e-6
3466273528035832554631548.326508909553
508909553
2014-04-0215089095530.00020.38980.7280
3466272730854813484856283395192477.854393918363757707317
31 × 81068263 × 156744989
2015-02-0681068263156744989163,1701.19752.3192

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3466272066722088865280041341532477.452
34662715997337420540026349009337291748933106.980
3466279634553635478863762391682776907554229738126.180
3466275643917964513226900308319448181500588870749240747155.305
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-02-06T16:56:57Lisander ViaeneManual testing5000050000-
skipped known factor: 585799631
--0.001--0.411%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-04-02T10:45:00TJAOIManual testing??48.326156.30573e-50.0070.000


ECM factoring results:

Old Calculation Method

Total ECM effort:10.471 GHz-days
Estimated T-Level:26.125
DigitsB1CurvesCompleteFacMiss
2011000425 / 1004.2501.396%
2550000425 / 2801.51821.859%
30250000144 / 6400.22579.838%

New Calculation Method

Total ECM effort:10.471 GHz-days
Estimated T-Level:26.125
DigitsB1CompleteFacMiss
201100023.8990.000%
25500003.0284.840%
302500000.28775.049%
3510000000.02297.832%
4030000000.00199.860%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002312.416
500005000000500.523
250000250000001447.532


Lucas-Lehmer results:
No L-L results for M346627


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T23:25:39Oliver KruseOllaptop31E23AAADD239E__?
2017-09-23T17:11:32Oliver KruseManual testing31E23AAADD239E__?
2017-10-13T04:30:40Oliver KruseGTX-131E23AAADD239E__no
2017-12-13T07:49:07ATHxps
585799631
352803583255463
273085481348485628339519
31E23AAADD239E__no
2020-04-18T15:13:58Oliver KruseAddPrpType5
585799631
352803583255463
273085481348485628339519
03823BE6DAA075__no


P-1 factor-bounds graph:
B1 = 50000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2022-02-06T16:56:57+00:00