is 2 104890673 - 1
has 31575239 decimal digits
takes 417.632 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRPE11D781FD39D6000verified PRP

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276145.904264.4737%8020003148700014.28204.2423%160.186365.9808%1.5071%
PrimeNet2729.117462.5000%450000220000009.37655.3953%18.493964.5232%2.0232%
GPU72276145.904264.4737%6500002400000011.09733.9265%157.001565.8686%1.3949%
Difference---+152000+7487000+3.1847+0.3158%+3.1847+0.1122%+0.1122%

Known prime factors:
No known factors for M104890673

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-07-15T09:42:25LordJuliusBabybox80200031487000---14.28--4.242%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-19T13:41:00sasaki3mata_ma1263264--0.019--
2010-08-29T13:57:00sasaki3MATE_J264265--0.036--
2012-05-08T11:55:00omiXorpSCS-DEV-z800-01265266--0.071--
2013-09-09T21:38:00willmoreManual testing266267--0.142--
2014-05-12T01:18:00SMoffatManual testing267268--0.285--
2014-06-08T01:35:00SMoffatManual testing268269--0.570--
2014-06-11T00:31:00Quantum SingularityManual testing269270--1.140--
2014-06-24T22:22:00Quantum SingularityManual testing270271--2.280--
2014-06-24T22:22:00Quantum SingularityManual testing271272--4.560--
2020-02-21T20:04:10el groccoManual testing272273--9.119--
2020-03-01T22:39:55Hans LoeblichManual testing273274--18.24--
2021-03-28T21:29:25TheJudgerManual testing274275--36.48--
2021-03-28T21:29:25TheJudgerManual testing275276--72.95--


ECM factoring results:
No ECM results for M104890673


Lucas-Lehmer results:
No L-L results for M104890673


PRP results:
dateuseridcompidcofactorsres64PRP
2021-08-24T06:05:31Stephan GruppnewCPPCE11D781FD39D6000no


P-1 factor-bounds graph:
B1 = 802000, B2 = 31487000 (P-1 stage 2)
B1 = 802000 (P-1 stage 1)
104
105
106
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: 2021-08-24T06:05:31+00:00