is 2 6234523 - 1
has 1876779 decimal digits
takes 1.105 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L4409AB22B9B218B5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual272153.393268.0556%30000002430000004.13117.1265%157.524370.3321%2.2765%
PrimeNet2620.098562.9032%260006000000.01473.3506%0.113364.1462%1.2430%
GPU722662.368865.1515%400009000000.02232.4325%2.391165.9992%0.8477%
Difference+6+151.0244+2.9040%+2960000+242100000+4.1087+4.6940%+155.1331+4.3329%+4.3329%

Known prime factors:
No known factors for M6234523

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-04-09T00:00:00Sturle Sundev4_computers800001720000---0.044--1.567%
2013-04-21T04:53:00Squeeky_SquirrelP4_26001150002300000---0.060--1.836%
2019-10-07T21:13:19takahashivaio6000001200000012---0.314--3.535%
2021-10-30T03:13:28firejugglerMaison3000000243000000---4.131--7.127%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-11T00:00:00ANONYMOUSv4_computers21262--0.099--
2016-02-23T16:39:20Mark RoseManual testing262263--0.157--
2014-09-12T09:14:00NesowaManual testing263264--0.315--
2014-09-17T11:17:00monstManual testing264265--0.599--
2015-10-13T20:45:58snme2pm1Manual testing265266--1.199--
2016-03-21T19:29:45Gordon SpenceManual testing266267--2.397--
2018-06-01T13:52:03ramgeisManual testing267268--4.794--
2020-04-05T23:18:51takahashiManual testing268269--9.59--
2020-07-19T02:58:34takahashiManual testing269270--19.18--
2021-08-16T15:45:34SRBaseManual testing270271--38.36--
2021-09-21T15:11:00SRBaseManual testing271272--76.71--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.617 GHz-days
Estimated T-Level:0.300
DigitsB1CurvesCompleteFacMiss
20110006 / 1000.06094.148%
25500006 / 2800.02197.876%

New Calculation Method

Total ECM effort:1.617 GHz-days
Estimated T-Level:0.300
DigitsB1CompleteFacMiss
20110000.19482.403%
25500000.01798.266%
302500000.00199.892%


ECM Summary

B1B2factorcurvesGHz-days
50000500000061.617


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-06T00:00:00ANONYMOUSv4_computers4409AB22B9B218B51.105
2015-11-13T16:40:44MadPooManual testing4409AB22B9B218B51.105


PRP results:
No PRP results for M6234523


P-1 factor-bounds graph:
B1 = 3000000, B2 = 243000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 600000, B2 = 12000000 (P-1 stage 2)
B1 = 600000 (P-1 stage 1)
B1 = 115000, B2 = 2300000 (P-1 stage 2)
B1 = 80000, B2 = 1720000 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
B1 = 80000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-10-30T03:13:28+00:00