is 2 82713283 - 1
has 24899180 decimal digits
takes 258.106 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
Actual27592.511264.0000 %7050007050003.18991.6131 %95.701264.5807 %
Target27592.511264.0000 %5500009000000024.53973.8907 %117.050965.4007 %
Difference---+155000-89295000-21.3497-2.2776 %-21.3497-0.8199 %

Known prime factors (1 factor, 76.1 bits, 0.00009194% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
82713283782255768530971304508812376.050472871913771680
25 × 5 × 59 × 127 × 10501 × 37561
2017-08-281050137561205.050.05420.0967

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2017-08-28S485122i7-477170500070500012376.0503.1901.613%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-18Architects Cubedm1_452642650.045
2011-03-29KarlMJManual testing2652660.090
2013-06-11SMoffatManual testing2662680.542
2013-08-11JGBT08152682690.723
2014-02-09ANONYMOUSelysie2692701.446
2014-03-29HobzManual testing2702712.891
2016-12-08ANONYMOUSManual testing27127586.73


ECM factoring results:
No ECM results for M82713283


Lucas-Lehmer results:
No L-L results for M82713283


PRP results:
No PRP results for M82713283


CERT results:
No CERT results for M82713283


P-1 factor-bounds graph:
B1 = 705000 (P-1 stage 1)
103
104
105
106
103
104
105
106
TF factor-bounds graph:
275
271
270
269
268
266
265
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00