is 2 105144859 - 1
has 31651757 decimal digits
takes 418.644 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
Actual276145.551564.4737%7730002325300011.53383.9932%157.085368.4669%5.9669%
PrimeNet2729.095462.5000%450000220000009.37655.3968%18.471967.8968%5.3968%
GPU72276145.551564.4737%6500002400000011.09733.9277%156.648868.4013%3.9277%
Difference---+123000-747000+0.4365+0.0655%+0.4365+0.0655%+0.0655%

Known prime factors (1 factor, 87.3 bits, 0.00008304% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1051448591923202325865582527301757512787.314914548910976989625
3 × 53 × 29 × 151 × 251 × 11932 × 1559
142324914232492021-04-04339,7108.216916.723

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-04-04T18:38:52TheJudgerManual testing77300023253000122787.31411.53837.323.073.993%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-20T02:16:00OS1corner263264--0.019--
2010-08-30T22:58:00sasaki3value264265--0.036--
2012-05-10T07:29:00Andrew Bdell_xps_17265266--0.071--
2013-09-09T21:48:00willmoreManual testing266267--0.142--
2014-11-13T22:56:00geoflyer267268--0.284--
2014-11-28T18:06:00Sid & AndyMrs_Potato_Head268269--0.569--
2015-01-06T06:55:00shaugeManual testing269270--1.137--
2015-01-06T06:55:00shaugeManual testing270271--2.274--
2019-01-10T21:01:45el groccoManual testing271272--4.549--
2020-03-29T09:46:56Jan S.Manual testing272273--9.097--
2020-03-31T16:54:45Jan S.Manual testing273274--18.19--
2021-03-28T21:38:41TheJudgerManual testing274275--36.39--
2021-03-28T21:38:41TheJudgerManual testing275276--72.78--


ECM factoring results:
Exponent "105144859" not found


Lucas-Lehmer results:
Exponent "105144859" not found


PRP results:
Exponent "105144859" not found


P-1 factor-bounds graph:
B1 = 773000, B2 = 23253000 (stage 2)
B1 = 773000 (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: 2021-04-04T18:38:52+00:00