is 2 9839099 - 1
has 2961864 decimal digits
takes 2.870 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L356B5A2EE2F2F629double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27297.197366.6667 %1000000211799973049.20218.6656 %146.399469.5552 %
Target2686.058064.7059 %6500075000000.19882.5613 %6.256865.6099 %
Difference+4+91.1393+1.9608 %+935000+2110499730+49.0033+6.1042%+140.1426+3.9453 %

Known prime factors (1 factor, 97.2 bits, 0.00098808% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
98390991843093385301546018072341152073097.2189366169530876485835097
37 × 101 × 1801 × 695843 × 1999926067
2022-01-0469584319999260675.364e+946.36086.068

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-07-21Matt Perryv4_computers55000907500--0.0432.185%
2013-03-23NesowaEPC12000023700006--0.1033.190%
2022-01-04Luminescence5950X21000000211799973023097.21864.9511.841%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-07-12delongv4_computers212640.200
2013-08-24NesowaManual testing2642650.380
2015-04-27VictordeHollanderManual testing2652660.759
2016-11-29snme2pm1Manual testing2662684.557
2019-10-25TJAOIManual testing2682696.076
2021-08-22SRBaseManual testing26927012.15
2021-09-06SRBaseManual testing27027124.30
2021-10-21SRBaseManual testing27127248.61


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)
2000-04-19ANONYMOUSv4_computers356B5A2EE2F2F6292.870
2003-07-30Matt Perryv4_computers356B5A2EE2F2F6292.870


PRP results:
dateuseridcompidcofactorsres64
2022-01-10Joe S.11600k
184309338530154601807234115207
4258FFAB086A6904


CERT results:
dateuseridcompid
2022-01-10The Gold Toothdoglips101


P-1 factor-bounds graph:
B1 = 1000000, B2 = 2117999730 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 120000, B2 = 2370000 (P-1 stage 2)
B1 = 120000 (P-1 stage 1)
B1 = 55000, B2 = 907500 (P-1 stage 2)
B1 = 55000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
272
271
270
269
268
266
265
264
this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00