is 2 346639 - 1
has 104349 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
Actualunknown50000500000.000715.2179%0.000715.2179%15.2179%
PrimeNet2400.000052.5000%34001000000.000116.2485%0.000160.2181%7.7181%
GPU722440.000056.8182%60001700000.000212.0273%0.000262.0118%5.1936%
Difference-440.0000-56.8182%+44000-120000+0.0005+3.1906%+0.0005-46.7939%-46.7939%

Known prime factors (1 factor, 31.2 bits, 0.00900373% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
34663924847083531031.2103584
29 × 7
-5125121.466e-97.197e-61.465e-5

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-02-06T16:57:57Lisander ViaeneManual testing5000050000-
skipped known factor: 2484708353
--0.001--9.949%


Trial Factoring results:
No TF results for M346639


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
5000050000002812.939
250000250000001447.532


Lucas-Lehmer results:
No L-L results for M346639


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T23:25:57Oliver KruseOllaptop
2484708353
BC914BEBD2606B__no
2017-09-23T17:11:33Oliver KruseManual testing
2484708353
BC914BEBD2606B__no
2017-10-13T04:30:14Oliver KruseGTX-0BC914BEBD2606B__no
2017-12-13T07:50:44ATHxps
2484708353
BC914BEBD2606B__no
2020-04-18T15:14:09Oliver KruseAddPrpType5
2484708353
4E3DF7130F7D67__no


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