is 2 108566231 - 1
has 32681693 decimal digits
takes 476.485 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276140.964664.4737%5500000550000035.00143.2073%175.966065.6131%3.1131%
PrimeNet2728.808862.5000%4500002400000011.02915.4989%19.837864.5621%2.0621%
GPU72276140.964664.4737%7000002400000012.53343.9817%153.497965.8882%1.4146%
Difference---+4800000-18500000+22.4680-0.7744%+22.4680-0.2751%-0.2751%

Known prime factors (1 factor, 90.5 bits, 0.00008332% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10856623117027676534204305924297061432890.4607842068559147229641
32 × 13 × 19 × 311 × 535169 × 21195313
2021-05-17535169211953134,389,72210.56913.726

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-05-17T02:05:30Ernst W. MayerManual testing550000055000002890.46035.00953.070.003.207%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-27T05:22:00Csaba Vágódebws-0364263264--0.018--
2010-09-11T04:30:00WPSs1264265--0.034--
2012-05-23T06:34:00Damian SilvestreDamiNotebook265266--0.069--
2013-09-25T08:29:00Phenom factoryp1266267--0.138--
2013-09-25T14:55:00Phenom factoryManual testing267268--0.275--
2014-10-31T16:31:00shaugeManual testing268269--0.551--
2014-10-31T16:31:00shaugeManual testing269270--1.101--
2014-10-31T16:31:00shaugeManual testing270271--2.203--
2015-02-08T09:46:00PascalBieriManual testing271272--4.405--
2019-09-18T17:54:09Niels_Mache_NextcloudManual testing272273--8.810--
2019-09-18T17:54:09Niels_Mache_NextcloudManual testing273274--17.62--
2021-04-26T21:08:04TheJudgerManual testing274275--35.24--
2021-04-26T21:08:04TheJudgerManual testing275276--70.48--


ECM factoring results:
Exponent "108566231" not found


Lucas-Lehmer results:
Exponent "108566231" not found


PRP results:
Exponent "108566231" not found


P-1 factor-bounds graph:
B1 = 5500000 (stage 1)
104
105
106
107
104
105
106
107
108
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: 2021-05-17T02:05:30+00:00