is 2 52390309 - 1
has 15771055 decimal digits
takes 100.366 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
Actual2692.278862.3188 %----2.278862.3188 %
Target27336.511464.3836 %360000550000009.26943.8401 %45.780865.7513 %
Difference-4-34.2326-2.0647 %-360000-55000000-9.2694-3.8401 %-43.5020-3.4324 %

Known prime factors (1 factor, 71.9 bits, 0.00013730% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5239030945014139543360301629112271.93142960368436995
5 × 89 × 241 × 12517 × 32003
2011-06-17125173200317.9680.03770.0708

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-06-17Amazon EC22271.9311.6810.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-01ANONYMOUSv4_computers212532.29000e-5
2000-02-23ANONYMOUSv4_computers212544.58000e-5
2000-05-05ANONYMOUSv4_computers212560.000
2001-06-23ANONYMOUSv4_computers212570.000
2002-04-28ANONYMOUSv4_computers212580.001
2003-11-281997rj7v4_computers212590.001
2004-02-231997rj7v4_computers212600.001
2007-05-28ANONYMOUSv4_computers212630.019
2008-11-07DerekManual testing212640.036
2009-01-02Sven Günther2642650.071
2009-04-12ANONYMOUS2652660.143
2009-08-07riccardo ubertiAthlonCrunch2662670.285
2009-12-15Mirko_Canakkahr1manu1a2672680.571
2010-03-27Sturle Sundeghini.ifi2682691.141


ECM factoring results:
No ECM results for M52390309


Lucas-Lehmer results:
No L-L results for M52390309


PRP results:
No PRP results for M52390309


CERT results:
No CERT results for M52390309


P-1 factor-bounds graph:
103
104
105
103
104
105
TF factor-bounds graph:
269
268
267
266
265
264
263
260
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00