is 2 118152457 - 1
has 35567434 decimal digits
takes 545.635 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual277259.056564.9351%6520005497060824.18284.1953%283.239366.4061%
Target276129.527564.4737%80000014000000056.14084.2101%185.668365.9694%
Difference+1+129.5290+0.4614%-148000-85029392-31.9580-0.0148%+97.5710+0.4368%

Known prime factors:
No known factors for M118152457

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2023-06-02NesowaSlim_Silver65200054970608---24.18--4.195%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-13wmjmoellerconrac01263264--0.017--
2010-10-13sasaki3HOME264265--0.032--
2012-07-12tscc02265266--0.063--
2014-04-03snme2pm1Manual testing266268--0.379--
2014-06-26snme2pm1Manual testing268269--0.506--
2014-11-19snme2pm1Manual testing269270--1.012--
2015-01-21snme2pm1Manual testing270271--2.024--
2015-04-03SMoffatManual testing271272--4.048--
2016-03-20snme2pm1Manual testing272273--8.096--
2019-08-27Niels_Mache_NextcloudManual testing273274--16.19--
2021-03-20jwnutterManual testing274275--32.38--
2021-03-20jwnutterManual testing275276--64.76--
2021-11-21VoidfManual testing276277--129.5--


ECM factoring results:
No ECM results for M118152457


Lucas-Lehmer results:
No L-L results for M118152457


PRP results:
No PRP results for M118152457


P-1 factor-bounds graph:
B1 = 652000, B2 = 54970608 (P-1 stage 2)
B1 = 652000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
277
276
275
274
273
272
271
270
269
268
266
265
264
this exponent TF target: 76
TF double-checked to: 67.9
250
260
270
280
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Last modified: 2023-10-02T12:12:48+00:00