is 2 49779413 - 1
has 14985097 decimal digits
takes 91.193 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
Actual2681.197461.7647 %----1.197461.7647 %
Target27338.426464.3836 %320000500000008.03993.6807 %46.466365.6945 %
Difference-5-37.2290-2.6189 %-320000-50000000-8.0399-3.6807 %-45.2689-3.9298 %

Known prime factors (1 factor, 78.2 bits, 0.00015717% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
497794133563238436911026685234732478.2383579028178688072
23 × 32 × 11 × 131 × 2011 × 17153651
2009-06-292011171536511,791.92.48764.6367

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-06-29Roman Maznichenkox64-Second2478.2384.8670.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-02-09Staffan SoderhjelmSampo_IV2632640.039
2009-02-10NoWhereManIngrid2642650.075
2009-02-11NoWhereManIngrid2652660.150
2009-02-12kutensantares2662670.300
2009-04-25Steve Rogersonofficedesktop2672680.600


ECM factoring results:
No ECM results for M49779413


Lucas-Lehmer results:
No L-L results for M49779413


PRP results:
No PRP results for M49779413


CERT results:
No CERT results for M49779413


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
108
TF factor-bounds graph:
268
267
266
265
264
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