is 2 160307239 - 1
has 48257288 decimal digits
takes 1,052.016 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
Actual279763.740964.5570 %5000000150000000122.75165.4306 %886.492466.4817 %
Target278381.869964.1026 %1000000180000000102.31593.8993 %484.185865.5023 %
Difference+1+381.8710+0.4544 %+4000000-30000000+20.4356+1.5314%+402.3066+0.9794 %

Known prime factors (1 factor, 96.9 bits, 0.00006042% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1603072391435849080945102454192233508813096.858447842870322625434960
24 × 32 × 5 × 8837 × 3185093 × 22098673
2020-12-01318509322098673141,707,34640.11461.682

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-12-01Roland ClarksonManual testing500000015000000023096.858127.35.890%


Trial Factoring results:
5758596061626364656667686970717273747576777879
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-29Torchwood InstitutePH95002632640.012
2011-02-02Ungelovendegammali7_12642650.023
2013-02-22sasaki3MATE_J22652660.047
2015-05-03Khalid al-HazmiKHRH-70.PC12662670.093
2016-03-02XZTManual testing2672680.186
2017-03-21Xolotlriptide-cpu-012682690.373
2017-12-04Primes.orgManual testing2692700.746
2017-12-04Primes.orgManual testing2702711.492
2017-12-25Oliver KruseManual testing27127692.48
2020-11-29Roland ClarksonManual testing27627795.47
2020-11-29Roland ClarksonManual testing277278190.9
2020-11-29Roland ClarksonManual testing278279381.9


ECM factoring results:
No ECM results for M160307239


Lucas-Lehmer results:
No L-L results for M160307239


PRP results:
No PRP results for M160307239


CERT results:
No CERT results for M160307239


P-1 factor-bounds graph:
B1 = 5000000, B2 = 150000000 (P-1 stage 2)
B1 = 5000000 (P-1 stage 1)
105
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105
106
107
108
109
TF factor-bounds graph:
279
278
277
276
271
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00