is 2 99716341 - 1
has 30017610 decimal digits
takes 380.307 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual277306.952364.9351 %775000149187508.54733.3010 %315.499766.0926 %
Target276153.475364.4737 %65000011000000036.54143.8391 %190.016765.8376 %
Difference+1+153.4771+0.4614 %+125000-95081250-27.9941-0.5381 %+125.4830+0.2550 %

Known prime factors (1 factor, 80.8 bits, 0.00008106% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9971634121493717775831761146785292580.83010777430038187904
27 × 3 × 7 × 13 × 307523 × 1002917
2020-07-2630752310029174,509.41.91023.4611

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-07-26Superbobmgarrett0677500014918750622580.8308.5473.637%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-09-201997rj7Manual testing2642650.037
2012-07-09Jimmy BrüggemanniMac22652660.075
2013-08-15america64Manual testing2662670.150
2013-08-26RobishManual testing2672680.300
2013-08-30arnaudGTINAS2682690.600
2013-09-03arnaudGTINAS2692701.199
2013-09-07arnaudGTINAS2702712.398
2013-12-28SMoffatManual testing2712724.796
2019-03-29Niels_Mache_NextcloudManual testing2722739.59
2019-12-19el groccoManual testing27327419.18
2020-03-20JoDuGPU72_TF27427538.37
2020-04-29TheJudgerManual testing27527676.74
2020-07-24ChuckManual testing276277153.5


ECM factoring results:
No ECM results for M99716341


Lucas-Lehmer results:
No L-L results for M99716341


PRP results:
No PRP results for M99716341


CERT results:
No CERT results for M99716341


P-1 factor-bounds graph:
B1 = 775000, B2 = 14918750 (P-1 stage 2)
B1 = 775000 (P-1 stage 1)
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105
106
104
105
106
107
108
TF factor-bounds graph:
277
276
275
274
273
272
271
270
269
268
267
266
265
this exponent TF target: 76
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00