is 2 2569459 - 1
has 773485 decimal digits
takes 0.178 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LC9681A711CEA8F47double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26946.463868.1159%32000001120000000.91807.4491%47.381870.4910%2.3751%
PrimeNet2590.029962.7119%110002000000.00212.6890%0.032063.7146%1.0027%
GPU722630.621165.0794%120001900000.00221.5041%0.623365.6046%0.5252%
Difference+6+45.8426+3.0366%+3188000+111810000+0.9158+5.9451%+46.7585+4.8864%+4.8864%

Known prime factors:
No known factors for M2569459

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-10-05T22:25:00Jocelyn LaroucheManual testing124980124980---0.013--0.818%
2015-05-07T19:56:00Squeeky_SquirrelP4_26001800005535000---0.047--3.044%
2016-04-19T21:45:31Jocelyn LaroucheManual testing4752821643714712---0.135--4.395%
2016-06-05T01:59:36mikrMSI320000011200000012---0.918--7.449%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-04-13T00:00:00lozcsv4_computers21259--0.030--
2016-02-23T16:29:16Mark RoseManual testing259260--0.030--
2009-01-29T20:55:00Sturle Sundehindemith.ifi260261--0.060--
2012-06-17T18:42:00Sebastian HornbostelManual testing261262--0.120--
2013-02-21T00:57:00dbaughManual testing262263--0.382--
2015-02-23T17:24:00VictordeHollanderManual testing263264--0.764--
2015-02-23T17:24:00VictordeHollanderManual testing264265--1.454--
2015-11-08T21:03:03ramgeisManual testing265266--2.908--
2017-08-13T10:39:20Gordon SpenceManual testing266267--5.817--
2019-04-01T13:34:43TJAOIManual testing267268--11.63--
2021-06-17T12:14:06TJAOIManual testing268269--23.27--


ECM factoring results:

Old Calculation Method

Total ECM effort:14.907 GHz-days
Estimated T-Level:22.786
DigitsB1CurvesCompleteFacMiss
2011000157 / 1001.57020.641%
2550000156 / 2800.55757.227%

New Calculation Method

Total ECM effort:14.907 GHz-days
Estimated T-Level:22.786
DigitsB1CompleteFacMiss
20110006.1270.218%
25500000.56756.706%
302500000.03696.480%
3510000000.00299.832%


ECM Summary

B1B2factorcurvesGHz-days
47000470000010.087
50000500000012811.82
50000675000070.742
50000689237570.750
500007000000141.512


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-05-09T00:00:00lozcsv4_computersC9681A711CEA8F470.178
2018-06-16T05:15:41kkmrkkblmbrbkoldC9681A711CEA8F470.178


PRP results:
No PRP results for M2569459


P-1 factor-bounds graph:
B1 = 3200000, B2 = 112000000 (P-1 stage 2)
B1 = 3200000 (P-1 stage 1)
B1 = 475282, B2 = 16437147 (P-1 stage 2)
B1 = 475282 (P-1 stage 1)
B1 = 180000, B2 = 5535000 (P-1 stage 2)
B1 = 180000 (P-1 stage 1)
B1 = 124980 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-05-08T04:22:00+00:00