is 2 9777083 - 1
has 2943196 decimal digits
takes 2.852 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L889846E07148F8ACdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27297.813866.6667%2000000410831850095.462310.0953%193.276170.0318%3.3651%
PrimeNet2640.364062.5000%4000011000000.04133.5163%0.405463.8186%1.3186%
GPU722686.096464.7059%6500015000000.06062.5588%6.156965.6090%0.9031%
Difference+4+91.7174+1.9608%+1935000+4106818500+95.4017+7.5366%+187.1191+4.4228%+2.4620%

Known prime factors (1 factor, 124.7 bits, 0.00127528% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
97770833418728697228556534080182974264531320138124.6851748337769674532032754648280200
23 × 52 × 31 × 211 × 317 × 6131 × 65101 × 709139 × 14895037
2022-11-20709139148950371.396e+100.62680.6410

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-12-14T00:00:00ANONYMOUSv4_computers1150001983750---0.092--1.899%
2020-09-05T18:58:40storm55107700_Kaby_Lake23300066420006---0.246--2.873%
2022-11-20T09:48:45ThaZ-1702000000410831850038124.68595.465.703190.910.095%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-06-26T00:00:00ANONYMOUSv4_computers21264--0.364--
2013-08-25T00:12:00NesowaManual testing264265--0.382--
2015-04-27T09:54:00VictordeHollanderManual testing265266--0.764--
2016-11-10T02:24:38snme2pm1Manual testing266267--1.529--
2016-11-10T02:24:38snme2pm1Manual testing267268--3.057--
2019-09-13T11:21:49TJAOIManual testing268269--6.114--
2021-08-21T15:35:58SRBaseManual testing269270--12.23--
2021-09-05T13:54:51SRBaseManual testing270271--24.46--
2021-10-19T15:35:55SRBaseManual testing271272--48.92--


ECM factoring results:
Total ECM effort:1.331 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000031.331


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-02-04T00:00:00ANONYMOUSv4_computers889846E07148F8AC2.852
2003-09-09T00:00:00ANONYMOUSv4_computers889846E07148F8AC2.852


PRP results:
dateuseridcompidcofactorsres64PRP
2022-11-25T19:17:18jeriffee5900X_Desktop
34187286972285565340801829742645313201
12683929F7DA975Cno


P-1 factor-bounds graph:
B1 = 2000000, B2 = 4108318500 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 233000, B2 = 6642000 (P-1 stage 2)
B1 = 233000 (P-1 stage 1)
B1 = 115000, B2 = 1983750 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
104
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106
107
104
105
106
107
108
109
1010
TF factor-bounds graph:
272
271
270
269
268
267
266
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264
250
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270
280
290
2100
2110
2120
2130
Last modified: 2022-11-25T19:17:18+00:00