is 2 2364667 - 1
has 711836 decimal digits
takes 0.160 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L30045DAD03F395D2double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26825.206567.6471%30000001000000000.81157.8353%26.018070.1820%2.5349%
PrimeNet2590.032562.7119%100001700000.00182.4727%0.034363.6339%0.9220%
GPU722630.674965.0794%100001400000.00171.2709%0.676665.5232%0.4438%
Difference+5+24.5315+2.5677%+2990000+99860000+0.8099+6.5644%+25.3414+4.6588%+4.6588%

Known prime factors (1 factor, 73.0 bits, 0.00308541% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
236466791843352830463880178012272.9601941993372226700
22 × 52 × 13 × 569 × 2625379711
2020-05-015692625379711548.0214.01126.169

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-09-21T00:00:00ANONYMOUSv4_computers2048204800---0.001--0.231%
2010-11-03T21:25:00Jocelyn LaroucheManual testing2000020000---0.002--0.260%
2010-12-31T03:21:00markrtiny1000002025000---0.020--2.408%
2014-09-10T00:51:00Jocelyn LaroucheManual testing127143127143---0.012--0.936%
2015-09-07T06:49:00mikrMSI3000000100000000---0.812--7.835%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-03-01T00:00:00ANONYMOUSv4_computers21259--0.032--
2016-02-23T16:29:13Mark RoseManual testing259260--0.032--
2009-01-16T03:18:00Sturle Sundegooch.ifi260261--0.065--
2012-05-30T16:43:00Sebastian HornbostelManual testing261262--0.130--
2013-12-04T21:14:00Jerry HallettManual testing262263--0.415--
2015-03-09T12:35:00VictordeHollanderManual testing263264--0.830--
2015-03-09T12:35:00VictordeHollanderManual testing264265--1.580--
2015-10-29T11:36:27ramgeisManual testing265266--3.160--
2017-06-16T21:40:01Gordon SpenceManual testing266267--6.320--
2019-04-15T13:43:03TJAOIManual testing267268--12.64--


ECM factoring results:

Old Calculation Method

Total ECM effort:4.353 GHz-days
Estimated T-Level:2.450
DigitsB1CurvesCompleteFacMiss
201100049 / 1000.49061.112%
255000049 / 2800.17583.919%

New Calculation Method

Total ECM effort:4.353 GHz-days
Estimated T-Level:2.450
DigitsB1CompleteFacMiss
20110001.58120.584%
25500000.14386.688%
302500000.00999.124%


ECM Summary

B1B2factorcurvesGHz-days
500005000000484.264
50000500000010.089


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-04T00:00:00ANONYMOUSv4_computers30045DAD03F395D20.160
2018-05-11T15:44:18kkmrkkblmbrbkold30045DAD03F395D20.160


PRP results:
dateuseridcompidcofactorsres64PRP
2020-05-01T12:03:02CrypticCluecruncher
9184335283046388017801
D2798E3CC698C4DCno
2020-05-02T10:57:59oodairacom1
9184335283046388017801
D2798E3CC698C4DCno


P-1 factor-bounds graph:
B1 = 3000000, B2 = 100000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 100000, B2 = 2025000 (P-1 stage 2)
B1 = 127143 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 20000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-05-02T10:57:59+00:00