is 2 3082291 - 1
has 927863 decimal digits
takes 0.262 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L02DCB85F6FD95F68double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26819.337867.6471%10000001199121000.92297.4769%20.260870.0661%2.4190%
PrimeNet2600.049863.3333%120002200000.00292.5277%0.052764.2602%0.9268%
GPU722641.154865.6250%140002200000.00311.4680%1.157966.1296%0.5046%
Difference+4+18.1831+2.0221%+986000+119692100+0.9198+6.0089%+19.1029+3.9364%+3.9364%

Known prime factors (1 factor, 65.8 bits, 0.00213342% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3082291623996141851987975192065.75810122278231549
11 × 19 × 48431953261
2009-04-2519484319532612.8230325.65608.22

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-02-14T00:00:00ANONYMOUSv4_computers2048204800---0.002--0.250%
2008-02-20T21:42:00David CampeauC0063400001000000---0.011--1.705%
2021-03-05T06:43:13Jocelyn LaroucheManual testing30822933905206---0.059--3.380%
2022-02-09T23:48:10Jocelyn LaroucheManual testing1000000119912100---0.923--7.477%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-03-31T00:00:00ANONYMOUSv4_computers21259--0.025--
1998-07-05T00:00:00ANONYMOUSv4_computers21259--0.025--
1998-07-11T00:00:00ANONYMOUSv4_computers21259--0.025--
2001-07-03T00:00:00ANONYMOUSv4_computers21260--0.050--
2009-02-14T10:13:00Sturle Sundeherrick.ifi260261--0.050--
2022-03-14T20:51:33LordJuliusManual testing21262--0.199--
2022-03-14T20:51:33LordJuliusManual testing262263--0.318--
2022-03-14T20:51:33LordJuliusManual testing263264--0.637--
2022-03-14T20:51:33LordJuliusManual testing264265--1.212--
2022-03-14T20:51:33LordJuliusManual testing26526665.758200.4560.5320.925
2022-03-14T20:51:33LordJuliusManual testing266267--4.849--
2021-06-16T11:14:58Jocelyn LaroucheManual testing267268--9.70--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CurvesCompleteFacMiss

New Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-06-15T00:00:00ANONYMOUSv4_computers02DCB85F6FD95F680.262
1999-08-22T00:00:00ANONYMOUSv4_computers02DCB85F6FD95F680.262
1999-09-14T00:00:00ANONYMOUSv4_computers02DCB85F6FD95F680.262


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-29T05:36:00Oliver KruseGTX-1
62399614185198797519
D90C6907D8A402__no
2017-12-11T11:12:48kkmrkkblmbrbkc4.xlarge
62399614185198797519
D90C6907D8A402__no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 119912100 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 308229, B2 = 3390520 (P-1 stage 2)
B1 = 308229 (P-1 stage 1)
B1 = 40000, B2 = 1000000 (P-1 stage 2)
B1 = 40000 (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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265
264
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2100
Last modified: 2022-03-14T20:51:33+00:00