is 2 95047427 - 1
has 28612127 decimal digits
takes 344.283 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
Actual27440.252263.5135 %8900002002500010.15014.7023 %50.402265.2292 %
Target27580.506264.0000 %65000011000000034.70514.2008 %115.211365.5123 %
Difference-1-40.2540-0.4865 %+240000-89975000-24.5550+0.5016%-64.8090-0.2830 %

Known prime factors (1 factor, 94.9 bits, 0.00009981% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
95047427360752347688034876851933519032994.865189774915047429362213
43 × 47 × 457 × 1103 × 46199 × 4032257
2019-08-3046199403225754,388,0231.38332.1551

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-08-30Ryan PropperManual testing89000020025000622994.86510.154.284%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2011-01-04Architects Cubedm1_132642650.039
2013-06-07David CampeauManual testing2652660.079
2014-04-18KlikManual testing2662680.472
2014-04-21KlikManual testing2682690.629
2014-06-20Ryan PropperManual testing2692701.258
2014-09-25SMoffatManual testing2702712.516
2018-10-28Andrew BManual testing2712725.032
2019-03-06Niels_Mache_NextcloudManual testing27227310.06
2019-08-25c10ck3rManual testing27327420.13


ECM factoring results:
No ECM results for M95047427


Lucas-Lehmer results:
No L-L results for M95047427


PRP results:
No PRP results for M95047427


CERT results:
No CERT results for M95047427


P-1 factor-bounds graph:
B1 = 890000, B2 = 20025000 (P-1 stage 2)
B1 = 890000 (P-1 stage 1)
103
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105
106
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108
TF factor-bounds graph:
274
273
272
271
270
269
268
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