is 2 105403289 - 1
has 31729552 decimal digits
takes 432.300 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
Actual276145.194764.4737%7710002319300011.85013.9911%157.044768.4648%5.9648%
PrimeNet2729.073162.5000%450000220000009.65865.3984%18.731767.8984%5.3984%
GPU72276145.194764.4737%7000002400000011.71233.9675%156.907068.4412%3.9675%
Difference---+71000-807000+0.1378+0.0236%+0.1378+0.0236%+0.0236%

Known prime factors (1 factor, 78.3 bits, 0.00007431% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1054032893797212681362472314116712478.3291801278080308515
3 × 5 × 172 × 16453 × 25254953
16453252549532021-04-041,050.38.275415.283

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-04-04T18:39:15TheJudgerManual testing77100023193000122478.32911.85864.623.703.991%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-20T14:25:00subgeniusvideodemo263264--0.019--
2010-08-31T14:10:00Mr-Plonklinux-i7-920264265--0.035--
2012-05-13T04:45:00omiXorpLLB16-T5500-07265266--0.071--
2013-09-03T14:48:00Cow_tippingManual testing266267--0.142--
2013-09-05T07:40:00g0bManual testing267268--0.284--
2013-09-06T16:34:00GrunwalderGIMPvangelis268269--0.567--
2014-06-16T15:41:00webbertManual testing269270--1.134--
2014-06-17T21:36:00TobiasVM270271--2.269--
2015-01-02T21:22:00shaugeManual testing271272--4.537--
2020-03-04T12:15:17el groccoManual testing272273--9.075--
2020-03-14T16:11:12Hans LoeblichManual testing273274--18.15--
2021-03-31T13:04:05RichD0Manual testing274275--36.30--
2021-04-02T17:20:111997rj7Manual testing275276--72.60--


ECM factoring results:
Exponent "105403289" not found


Lucas-Lehmer results:
Exponent "105403289" not found


PRP results:
Exponent "105403289" not found


P-1 factor-bounds graph:
B1 = 771000, B2 = 23193000 (stage 2)
B1 = 771000 (stage 1)
103
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105
106
103
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105
106
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108
TF factor-bounds graph:
276
275
274
273
272
271
270
269
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267
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250
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2100
Last modified: 2021-04-04T18:39:15+00:00