is 2 80071399 - 1
has 24103893 decimal digits
takes 249.862 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
Actual276191.129364.4737 %660000122100005.83363.3294 %196.962965.6565 %
Target27595.563664.0000 %5000008500000023.09323.7832 %118.656765.3620 %
Difference+1+95.5658+0.4737 %+160000-72790000-17.2596-0.4538 %+78.3062+0.2946 %

Known prime factors (1 factor, 80.8 bits, 0.00010088% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8007139920725792773538644981590472580.77812942069847898277
3 × 251 × 431 × 33703 × 1183213
2016-11-033370311832134,287.30.43590.5448

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-11-03James Heinrichi7-9206600001221000022580.7785.8343.673%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-02Architects Cubedtcu_12642650.047
2011-08-11Carsten KossendeyManual testing2652660.093
2013-01-26phoenicisManual testing2662670.187
2013-01-30rjbelansManual testing2672680.373
2013-08-12ANONYMOUS2682690.747
2013-10-13ITSCP_-_Server12692701.493
2013-10-30S04803Manual testing2702712.986
2014-11-09garoManual testing2712725.973
2016-10-28Judge HaleManual testing27227435.84
2016-10-30BdotManual testing27427547.78
2016-10-31dh1Manual testing27527695.57


ECM factoring results:
No ECM results for M80071399


Lucas-Lehmer results:
No L-L results for M80071399


PRP results:
No PRP results for M80071399


CERT results:
No CERT results for M80071399


P-1 factor-bounds graph:
B1 = 660000, B2 = 12210000 (P-1 stage 2)
B1 = 660000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
276
275
274
272
271
270
269
268
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