is 2 9095837 - 1
has 2738120 decimal digits
takes 2.514 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L3BF94CC51E2DF026double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27152.560166.1972 %20000004771857090104.950010.9694 %157.510269.9051 %
Target2686.553064.7059 %6000065000000.16472.4039 %6.717665.5543 %
Difference+3+46.0071+1.4913 %+1940000+4765357090+104.7854+8.5654%+150.7925+4.3508 %

Known prime factors (1 factor, 82.4 bits, 0.00090596% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
909583764031678699083072709542732582.405351983433185330128
24 × 7 × 13 × 17 × 570077 × 24944707
2022-08-1457007724944707108,3360.76071.0173

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-06-17Mitchcanv4_computers45000585000--0.0301.836%
2012-07-03Squeeky_SquirrelP4_260017000036550006--0.1443.668%
2022-08-14ThaZ-1702000000477185709022582.405124.013.577%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-01-10ANONYMOUSv4_computers212620.051
1999-01-17ANONYMOUSv4_computers212630.108
2000-03-08Wayne Beardsleyv4_computers212640.216
2013-09-14NesowaManual testing2642650.411
2015-05-17VictordeHollanderManual testing2652660.822
2016-03-27snme2pm1Manual testing2662671.643
2017-01-26snme2pm1Manual testing2672683.286
2019-11-15TJAOIManual testing2682696.572
2021-05-04ANONYMOUSManual testing26927013.14
2021-11-08mikrManual testing27027126.29


ECM factoring results:
Total ECM effort:1.261 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000031.261


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-11-05Wayne Beardsleyv4_computers3BF94CC51E2DF0262.514
2003-07-21Mitchcanv4_computers3BF94CC51E2DF0262.514


PRP results:
dateuseridcompidcofactorsres64
2022-08-18LordJuliusWhitebox
6403167869908307270954273
95EDE381120B81E8


CERT results:
dateuseridcompid
2022-08-18GhiloarGhiloar_s_desktop


P-1 factor-bounds graph:
B1 = 2000000, B2 = 4771857090 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 170000, B2 = 3655000 (P-1 stage 2)
B1 = 170000 (P-1 stage 1)
B1 = 45000, B2 = 585000 (P-1 stage 2)
B1 = 45000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
271
270
269
268
267
266
265
264
263
262
this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00