is 2 88762613 - 1
has 26720210 decimal digits
takes 299.245 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
Actual276172.414964.4737 %770000190575008.63463.7633 %181.049565.8106 %
Target27586.206464.0000 %60000010000000029.40654.0503 %115.612965.4581 %
Difference+1+86.2084+0.4737 %+170000-80942500-20.7719-0.2870 %+65.4366+0.3525 %

Known prime factors (1 factor, 93.3 bits, 0.00010515% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
88762613124731889840547875930393823772993.33370261501788229170276
22 × 33 × 11 × 13 × 29 × 61 × 242273 × 10615117
2018-12-012422731061511724,536,0823.94695.2803

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-12-01penluManual testing77000019057500622993.3339.4004.140%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-11-15Architects Cubedm1_612642650.042
2011-03-24wavelet3000Manual testing2652660.084
2011-04-02wavelet3000Manual testing2662670.168
2011-05-30wavelet3000Manual testing2672702.357
2013-12-24SMoffatManual testing2702712.694
2017-08-11ANONYMOUSManual testing27127437.72
2018-09-02TheJudgerManual testing274276129.3


ECM factoring results:
No ECM results for M88762613


Lucas-Lehmer results:
No L-L results for M88762613


PRP results:
No PRP results for M88762613


CERT results:
No CERT results for M88762613


P-1 factor-bounds graph:
B1 = 770000, B2 = 19057500 (P-1 stage 2)
B1 = 770000 (P-1 stage 1)
104
105
106
104
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