is 2 1807129 - 1
has 544001 decimal digits
takes 0.098 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L54589F5794ABCC0Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26716.442668.6567%2780000917600000.60008.1192%17.042671.2015%2.5448%
PrimeNet2570.010663.1579%80001500000.00122.8723%0.011964.2161%1.0582%
GPU722610.170065.5738%90001300000.00121.5556%0.171266.1093%0.5355%
Difference+6+16.2726+3.0829%+2771000+91630000+0.5988+6.5635%+16.8714+5.0922%+5.0922%

Known prime factors (3 factors, 250.3 bits, 0.01384802% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
180712911350751759906677579992269.943314054828402031
32 × 549707 × 63479237
2015-05-0654970763479237122.650.31290.5081
18071293262435821582739777428472478.11090265714887612887
7 × 12895102126801841
2021-02-1271289510212680184145,21855,265,184103,219,973
1807129581634068204452423073503135656731102.1981609276560235745270740227
32 × 72 × 37 × 179 × 64123 × 343667 × 25002629
2015-05-06343667250026299.155e+100.13270.2001

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
180712937031099143412871108270800262131486404928315345148.054
180712966019839232933688822327294308426786060641934354294
33
52172.141
180712918975438191631040441755216903547650402463899950907
26249
55180.308
180712921538548844865641575209101893406646675615029521431
71416950682964693489015751
76250.252
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-09-21T00:00:00ANONYMOUSv4_computers25000387500---0.004--1.199%
2011-02-07T12:38:00Carsten Kossendeyleela1000001650000---0.015--2.478%
2014-05-12T10:21:00Jocelyn LaroucheManual testing135517135517---0.011--1.060%
2014-09-20T22:31:00Jocelyn LaroucheManual testing171034171034---0.013--1.201%
2015-05-06T13:01:00mikrMSI2780000917600001252172.1410.6000.1961.2008.119%
2016-03-16T12:36:33alpertronManual testing5000001500000012---0.101--5.061%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-01-16T00:00:00ANONYMOUSv4_computers21258--0.021--
2022-03-08T23:06:28LordJuliusManual testing258260--0.064--
2010-04-12T01:49:00Architects Cubedm1_tt260261--0.085--
2010-12-13T03:33:00GrunwalderGIMPManual testing21263--0.883--
2015-04-21T04:58:00snme2pm1Manual testing263264--1.086--
2015-04-21T04:58:00snme2pm1Manual testing264265--2.068--


ECM factoring results:

Old Calculation Method

Total ECM effort:17.795 GHz-days
Estimated T-Level:24.607
DigitsB1CurvesCompleteFacMiss
2011000258 / 1002.5807.480%
2550000258 / 2800.92139.729%

New Calculation Method

Total ECM effort:17.795 GHz-days
Estimated T-Level:24.607
DigitsB1CompleteFacMiss
20110008.3230.024%
25500000.75247.133%
302500000.04695.474%
3510000000.00299.788%


ECM Summary

B1B2factorcurvesGHz-days
50000500000025717.73
50000500000010.069


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-01T00:00:00ANONYMOUSv4_computers54589F5794ABCC0A0.098


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-03T20:11:01Oliver KruseGTX-0
1135075175990667757999
5816340682044524230735031356567
C2A70F78360B8D8Ano
2017-10-05T21:07:18Oliver KruseManual testing
1135075175990667757999
5816340682044524230735031356567
C2A70F78360B8D__no
2017-11-11T01:45:30kkmrkkblmbrbkc4.xlarge
1135075175990667757999
5816340682044524230735031356567
C2A70F78360B8D__no
2021-02-12T12:43:59SRJ2877LTOS
1135075175990667757999
326243582158273977742847
5816340682044524230735031356567
80E94258D25D36D6no


P-1 factor-bounds graph:
B1 = 2780000, B2 = 91760000 (P-1 stage 2)
B1 = 2780000 (P-1 stage 1)
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
B1 = 100000, B2 = 1650000 (P-1 stage 2)
B1 = 171034 (P-1 stage 1)
B1 = 135517 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 25000, B2 = 387500 (P-1 stage 2)
B1 = 25000 (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
1015
1016
1017
TF factor-bounds graph:
267
265
264
263
261
260
258
250
260
270
280
290
2100
2110
Last modified: 2022-03-08T23:06:28+00:00