is 2 88139593 - 1
has 26532662 decimal digits
takes 297.145 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
Actual276173.633664.4737 %760000188100008.52253.7443 %182.156165.8039 %
Target27586.815864.0000 %60000010000000029.40654.0468 %116.222365.4568 %
Difference+1+86.8178+0.4737 %+160000-81190000-20.8840-0.3025 %+65.9338+0.3470 %

Known prime factors (1 factor, 80.7 bits, 0.00009160% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8813959320109125874285472419956572580.73411407544095583396
22 × 19 × 31 × 89 × 11483 × 4737743
2018-08-021148347377433,930.31.31492.3567

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-08-02Niels_Mache_NextcloudManual testing760000188100001222580.7349.2784.119%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-13Architects Cubedm1_602642650.042
2011-03-16wavelet3000Manual testing2652660.085
2011-04-26wavelet3000Manual testing2662670.170
2011-11-03wavelet3000Manual testing2672702.374
2013-11-19SMoffatManual testing2702712.713
2017-07-07ANONYMOUSManual testing27127437.98
2018-07-03tServoManual testing274276130.2


ECM factoring results:
No ECM results for M88139593


Lucas-Lehmer results:
No L-L results for M88139593


PRP results:
No PRP results for M88139593


CERT results:
No CERT results for M88139593


P-1 factor-bounds graph:
B1 = 760000, B2 = 18810000 (P-1 stage 2)
B1 = 760000 (P-1 stage 1)
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105
106
107
108
TF factor-bounds graph:
276
274
271
270
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