is 2 108547991 - 1
has 32676202 decimal digits
takes 476.405 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
Actual276140.988364.4737%3500000350000022.27362.7699%163.261967.2436%4.7436%
PrimeNet2728.810262.5000%4500002400000011.02915.4988%19.839367.9988%5.4988%
GPU72276140.988364.4737%7000002400000012.53343.9817%153.521668.4553%3.9817%
Difference---+2800000-20500000+9.7403-1.2118%+9.7403-1.2118%-1.2118%

Known prime factors (1 factor, 79.3 bits, 0.00007304% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1085479917342517742513473449778892479.2813382152757904784
24 × 3 × 702017 × 100370099
7020171003700992021-02-241,338.939.02564.998

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-02-24T07:34:16Richard ThomasManual testing350000035000002479.28122.27952.844.552.770%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-07-01T00:06:00RichardUNKNOWN263264--0.018--
2010-09-11T03:53:00oilwarzonedotcomb2bwebserver264265--0.034--
2012-05-22T08:52:00sasaki3mate_ma2265266--0.069--
2013-09-26T04:51:00timc995dl580_g5b266267--0.138--
2013-09-27T02:10:00ANONYMOUSManual testing267268--0.275--
2013-09-27T02:12:00Mark RoseManual testing267268--0.275--
2013-09-27T02:10:00ANONYMOUSManual testing268269--0.551--
2015-07-29T11:27:00David Barleyscrappy269270--1.101--
2015-08-05T05:53:00ANONYMOUS270271--2.203--
2019-01-27T19:10:10Niels_Mache_NextcloudManual testing271272--4.406--
2019-09-23T13:16:28Niels_Mache_NextcloudManual testing272273--8.812--
2019-09-23T13:16:28Niels_Mache_NextcloudManual testing273274--17.62--
2020-10-19T09:45:01ktonyGPU72_TF274275--35.25--
2020-10-19T10:13:01ktonyGPU72_TF275276--70.49--


ECM factoring results:
Exponent "108547991" not found


Lucas-Lehmer results:
Exponent "108547991" not found


PRP results:
Exponent "108547991" not found


P-1 factor-bounds graph:
B1 = 3500000 (stage 1)
104
105
106
107
104
105
106
107
108
109
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
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2100
Last modified: 2021-02-24T07:34:16+00:00