is 2 2010329 - 1
has 605170 decimal digits
takes 0.132 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LD8703ACA12722378double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26714.780668.6567%580000150800000.13065.2198%14.911270.2928%1.6360%
PrimeNet2580.019163.7931%90001500000.00162.6096%0.020764.7380%0.9449%
GPU722620.305666.1290%80001200000.00131.2720%0.306966.5599%0.4308%
Difference+5+14.4750+2.5277%+572000+14960000+0.1293+3.9478%+14.6043+3.7329%+3.7329%

Known prime factors (1 factor, 77.2 bits, 0.00384037% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
20103291740784456455024360612412477.20443296009172006780
22 × 5 × 7 × 2044351 × 151274027
2017-10-06204435115127402721,6850.97001.4676

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-04-28T00:00:00Jocelyn Larouchev4_computers20002000---0.000--0.022%
2002-05-05T00:00:00Jocelyn Larouchev4_computers30003000---0.000--0.040%
2003-01-25T00:00:00ANONYMOUSv4_computers30000547500---0.006--1.425%
2003-11-16T00:00:00ANONYMOUSv4_computers2048204800---0.001--0.273%
2010-11-29T23:20:00Jocelyn LaroucheManual testing201032201032---0.019--1.328%
2013-10-08T12:24:00David Campeaui5-2500k58000015080000---0.131--5.220%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-03-15T00:00:00Stephen Woodv4_computers21258--0.019--
2016-02-23T16:29:03Mark RoseManual testing258260--0.057--
2009-01-04T07:10:00Sturle Sundecorbusier.ifi260261--0.076--
2011-12-28T01:20:00Sebastian HornbostelManual testing261262--0.153--
2013-02-11T20:22:00dbaughManual testing262263--0.488--
2015-03-15T12:12:00VictordeHollanderManual testing263264--0.977--
2015-03-15T12:12:00VictordeHollanderManual testing264265--1.859--
2015-10-28T09:42:35ramgeisManual testing265266--3.717--
2016-03-14T03:48:36Smok_bmvManual testing266267--7.434--


ECM factoring results:

Old Calculation Method

Total ECM effort:4.265 GHz-days
Estimated T-Level:2.400
DigitsB1CurvesCompleteFacMiss
201100048 / 1000.48061.729%
255000048 / 2800.17184.220%

New Calculation Method

Total ECM effort:4.265 GHz-days
Estimated T-Level:2.400
DigitsB1CompleteFacMiss
20110001.89115.092%
25500000.17683.897%
302500000.01198.895%


ECM Summary

B1B2factorcurvesGHz-days
500005000000332.793
50000500000010.085
50000707013870.692
50000715000070.696


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-26T00:00:00Stephen Woodv4_computersD8703ACA127223780.132
2016-05-05T08:34:00MadPooManual testingD8703ACA127223780.132


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-07T03:14:11Oliver KruseGTX-3
174078445645502436061241
6BE0CD38024CEE__no
2017-11-13T15:01:03kkmrkkblmbrbkc4.xlarge
174078445645502436061241
6BE0CD38024CEE__no


P-1 factor-bounds graph:
B1 = 580000, B2 = 15080000 (P-1 stage 2)
B1 = 580000 (P-1 stage 1)
B1 = 201032 (P-1 stage 1)
B1 = 30000, B2 = 547500 (P-1 stage 2)
B1 = 30000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 3000 (P-1 stage 1)
B1 = 2048 (P-1 stage 1)
B1 = 2000 (P-1 stage 1)
102
103
104
105
106
107
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
266
265
264
263
262
261
260
258
250
260
270
280
290
2100
Last modified: 2022-08-12T01:54:51+00:00