is 2 108066793 - 1
has 32531347 decimal digits
takes 443.224 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-daysProbabilityProb over default TF
Actual276141.616164.4737%100000010000005.94701.7361%147.563165.0905%0.6168%
PrimeNet2728.849562.5000%450000220000009.65865.4144%18.508064.5304%2.0304%
GPU72276141.616164.4737%7000002400000011.71233.9795%153.328465.8875%1.4138%
Difference---+300000-23000000-5.7653-2.2434%-5.7653-0.7970%-0.7970%

Known prime factors (1 factor, 76.5 bits, 0.00007075% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1080667931034075900375682478123432476.453478442947953347
13 × 337 × 1399 × 1543 × 50591
2020-11-09154350591223.980.02510.0306

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-11-09T01:16:48Ernst W. MayerManual testing100000010000002476.4535.947886.411.891.736%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-05-01T20:21:00RichardFX5000_1263264--0.018--
2010-09-09T20:48:00Donna NoblePH2-940-v3-MVB264265--0.035--
2012-05-20T05:22:00omiXorpLLB03-z800-16265266--0.069--
2013-09-22T11:00:00shengManual testing266267--0.138--
2014-07-21T02:24:00SMoffatManual testing267268--0.277--
2014-10-31T18:14:00Earle LoweManual testing268269--0.553--
2014-11-14T17:11:00Earle LoweManual testing269270--1.106--
2014-11-16T00:59:00shaugeManual testing270271--2.213--
2019-01-21T21:14:33Niels_Mache_NextcloudManual testing271272--4.426--
2019-12-01T21:55:56Niels_Mache_NextcloudManual testing272273--8.851--
2019-12-01T21:55:56Niels_Mache_NextcloudManual testing273274--17.70--
2020-06-22T21:07:18valdynManual testing274275--35.40--
2020-09-12T02:18:02el groccoGPU72_TF275276--70.81--


ECM factoring results:
No ECM results for M108066793


Lucas-Lehmer results:
No L-L results for M108066793


PRP results:
No PRP results for M108066793


P-1 factor-bounds graph:
B1 = 1000000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
Last modified: 2020-11-09T01:16:48+00:00