is 2 2694031 - 1
has 810985 decimal digits
takes 0.208 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
Actual26711.029567.1642%2000000600000000.57797.7059%11.607469.6945%2.5303%
PrimeNet2590.028562.7119%120002200000.00262.8419%0.031163.7716%1.0597%
GPU722630.592465.0794%140002200000.00281.6606%0.595365.6592%0.5799%
Difference+4+10.4371+2.0848%+1986000+59780000+0.5751+6.0453%+11.0122+4.0352%+4.0352%

Known prime factors (3 factors, 173.4 bits, 0.00643625% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
269403143509947665511341.984807525
32 × 52 × 37 × 97
-37971.945e-74.510e-68.433e-6
2694031133094255328668331753.5632470169336
23 × 109 × 271 × 10453
2014-09-30271104530.00089.248e-50.0001
26940312717560395156410506384312477.84750436694959271265
5 × 149 × 67700261690297
2018-04-071496770026169029720,522413,083771,525

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
2694031579092408393038448266057029832995.548
2694031118240910571118096423567245835392148137119.831
2694031361691677104024101571590013066835505902340131.410
269403115737185941846630175601578011176189915636957711139
673
53173.394
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-07-04T12:49:01alpertronManual testing20000006000000012-
skipped known factor: 4350994766551
skipped known factor: 13309425532866833
--0.578--7.706%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-09-30T11:04:00TJAOIManual testing253254*53.563170.0000.4500.001


ECM factoring results:

Old Calculation Method

Total ECM effort:0.311 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

New Calculation Method

Total ECM effort:0.311 GHz-days
Estimated T-Level:0.150
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.311


Lucas-Lehmer results:
No L-L results for M2694031


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-15T17:17:45YarBerManual testing
4350994766551
13309425532866833
no
2017-11-15T06:47:15Oliver KruseGTX-1
4350994766551
13309425532866833
6A54D7E74339E0__no
2018-04-08T11:22:38Daniel BambergerHome_laptop
4350994766551
13309425532866833
271756039515641050638431
79774DBFBC4E75__no
2018-04-09T03:47:41kkmrkkblmbrbkc5.large
4350994766551
13309425532866833
271756039515641050638431
79774DBFBC4E75__no


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
TF factor-bounds graph:
267
254
240
250
260
270
280
290
2100
Last modified: 2019-07-04T12:49:01+00:00