is 2 88436741 - 1
has 26622112 decimal digits
takes 298.146 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
Actual276173.050264.4737 %7250007250003.54411.4696 %176.594364.9958 %
Target27586.524164.0000 %60000010000000029.40654.0485 %115.930665.4574 %
Difference+1+86.5261+0.4737 %+125000-99275000-25.8624-2.5788 %+60.6637-0.4617 %

Known prime factors (1 factor, 85.3 bits, 0.00009640% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
88436741461826813339373453668167212685.256261105739603957960
23 × 5 × 71 × 18539 × 31231 × 158791
2018-09-1331231158791137,6990.18660.3107

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-09-13Oliver KruseHTC072500072500012685.2563.5441.649%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-14Architects Cubedm1_492642650.042
2011-03-11wavelet3000Manual testing2652660.084
2011-04-09wavelet3000Manual testing2662670.169
2011-08-23wavelet3000Manual testing2672702.366
2013-06-24SMoffatManual testing2702712.704
2017-07-21ANONYMOUSManual testing27127437.86
2018-08-09Strolling JellyfishManual testing274276129.8


ECM factoring results:
No ECM results for M88436741


Lucas-Lehmer results:
No L-L results for M88436741


PRP results:
No PRP results for M88436741


CERT results:
No CERT results for M88436741


P-1 factor-bounds graph:
B1 = 725000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
276
274
271
270
267
266
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00