is 2 90696227 - 1
has 27302285 decimal digits
takes 305.764 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
Actual277337.480064.9351 %6950006950003.39741.2883 %340.877565.3868 %
Target27584.368564.0000 %60000010000000029.40654.0609 %113.775065.4619 %
Difference+2+253.1115+0.9351 %+95000-99305000-26.0090-2.7727 %+227.1024-0.0751 %

Known prime factors (1 factor, 85.3 bits, 0.00009404% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
90696227472700800973399241702608332685.289260595625975377808
24 × 31 × 347 × 359 × 397 × 443 × 23981
2019-02-2744323981101,5050.00840.0119

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-03-19c10ck3rManual testing1000010000--0.0530.091%
2019-02-27ky0urakubackup69500069500012685.2893.3971.625%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-23Carsten Kossendeymother2642650.041
2010-10-27Carsten Kossendeymother2652660.082
2010-11-27Carsten KossendeyManual testing2662670.165
2011-01-27Carsten KossendeyManual testing2672680.330
2012-05-20Carsten KossendeyManual testing2682690.659
2014-04-01SMoffatManual testing2692701.318
2014-09-22webbertManual testing2702712.637
2016-04-01Carsten KossendeyManual testing2712725.273
2017-06-07Carsten KossendeyManual testing27227310.55
2018-11-26Tim SorberaManual testing27327421.09
2018-12-05Strolling JellyfishManual testing274276126.6
2019-01-27TheJudgerManual testing276277168.7


ECM factoring results:
No ECM results for M90696227


Lucas-Lehmer results:
No L-L results for M90696227


PRP results:
No PRP results for M90696227


CERT results:
No CERT results for M90696227


P-1 factor-bounds graph:
B1 = 695000 (P-1 stage 1)
B1 = 10000 (P-1 stage 1)
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104
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106
TF factor-bounds graph:
277
276
274
273
272
271
270
269
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267
266
265
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00