is 2 103786259 - 1
has 31242778 decimal digits
takes 413.235 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L470501F69C7024FCdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual277294.915464.9351 %4890008264445028.66484.2206 %323.580266.4150 %
Target276147.456864.4737 %65000011000000038.14833.8579 %185.605165.8442 %
Difference+1+147.4585+0.4614 %-161000-27355550-9.4834+0.3627%+137.9751+0.5708 %

Known prime factors (1 factor, 87.0 bits, 0.00008384% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1037862591564546439535788277378411132787.016753734865583597284
22 × 32 × 17 × 2351 × 47419 × 11047453
2022-12-104741911047453432,9903.73386.4902

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-04-04NPCBryan-2017935000935000--5.3981.678%
2022-12-10Mark Rosemichelangelo4890008264445022787.01631.604.643%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-17oodairaWin022632640.019
2010-08-24Torchwood InstituteHTPC-V642642650.036
2012-05-06csabatimigep2652660.072
2014-05-16Smok_bmvManual testing2662702.160
2014-10-23workerthreadManual testing2702712.304
2015-01-01SMoffatManual testing2712724.608
2019-09-11Niels_Mache_NextcloudManual testing27227427.65
2020-08-17linamentGPU72_TF27427536.86
2020-08-17ktonyGPU72_TF27527673.73
2020-08-17ChuckGPU72_TF276277147.5


ECM factoring results:
No ECM results for M103786259


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2021-04-26NPCBryan-2017470501F69C7024FC413.2


PRP results:
No PRP results for M103786259


CERT results:
No CERT results for M103786259


P-1 factor-bounds graph:
B1 = 489000, B2 = 82644450 (P-1 stage 2)
B1 = 935000 (P-1 stage 1)
B1 = 489000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
277
276
275
274
272
271
270
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
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290
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Last modified: 2024-03-13T02:15:48+00:00