is 2 116487391 - 1
has 35066199 decimal digits
takes 537.945 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
Actual277262.759564.9351 %8820008820005.90601.4870 %268.665565.4565 %
Target276131.379064.4737 %70000013000000051.85944.0759 %183.238465.9217 %
Difference+1+131.3805+0.4614 %+182000-129118000-45.9533-2.5888 %+85.4271-0.4652 %

Known prime factors (1 factor, 82.5 bits, 0.00007083% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11648739168977171367025023796942732582.51229607140641953696
25 × 3 × 167 × 1901 × 3391 × 286483
2022-09-26339128648315,7900.12600.1952

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-09-26Simon Josefssoncto488200088200012582.5125.9061.665%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-05-10Torchwood InstitutePH95002632640.017
2010-10-09Charles A. Morrismagnetar2642650.032
2012-06-28Mr-PlonkLinux-i72652660.064
2014-12-05ANONYMOUS2662670.128
2015-04-12bunddogManual testing2672680.257
2015-04-20junkcalcManual testing2682690.513
2015-04-28ANONYMOUS2692701.026
2015-05-21TMarshallWin7_642702712.053
2015-06-03g0bManual testing2712724.106
2020-04-27SRBaseManual testing2722738.211
2021-01-27ixfd64Manual testing27327416.42
2021-06-131997rj7Manual testing27427698.54
2021-08-11rushynManual testing276277131.4


ECM factoring results:
No ECM results for M116487391


Lucas-Lehmer results:
No L-L results for M116487391


PRP results:
No PRP results for M116487391


CERT results:
No CERT results for M116487391


P-1 factor-bounds graph:
B1 = 882000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
277
276
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00