is 2 33931327 - 1
has 10214348 decimal digits
takes 40.152 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L920ED7E56A6F6574double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27356.374064.3836 %400000102000001.60253.6315 %57.976565.6770 %
Target27114.089663.3803 %240000350000003.66133.8393 %17.750964.7862 %
Difference+2+42.2844+1.0033 %+160000-24800000-2.0588-0.2078 %+40.2256+0.8908 %

Known prime factors:
No known factors for M33931327

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-05-25ANONYMOUSv4_computers40000010200000--1.6024.434%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2004-05-25ANONYMOUSv4_computers212680.881
2012-11-25krackerManual testing2682691.762
2013-07-24NumberwangManual testing2692703.524
2013-08-21Le ComteManual testing2702717.047
2022-07-18Architects CubedGPU72_TF27127214.09
2022-10-07Architects CubedGPU72_TF27227328.19


ECM factoring results:
No ECM results for M33931327


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-09-02ANONYMOUSv4_computers920ED7E56A6F657440.15
2004-09-14ANONYMOUSv4_computers920ED7E56A6F657440.15
2014-11-13Ruediger EckhardHP8200920ED7E56A6F657440.15


PRP results:
No PRP results for M33931327


CERT results:
No CERT results for M33931327


P-1 factor-bounds graph:
B1 = 400000, B2 = 10200000 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
273
272
271
270
269
268
this exponent TF target: 71
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00