is 2 6115069 - 1
has 1840820 decimal digits
takes 1.084 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L61529704C70F65ACdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2674.859165.6716%11500022425000.05933.2713%4.918566.7946%1.1230%
PrimeNet2620.100562.9032%260006000000.01473.3400%0.115264.1423%1.2390%
GPU722662.415165.1515%400009000000.02232.4247%2.437465.9965%0.8450%
Difference+1+2.4440+0.5201%+75000+1342500+0.0370+0.8465%+2.4811+0.7981%+0.7981%

Known prime factors (1 factor, 82.0 bits, 0.00134117% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
611506948806769538193035917520972582.013399069655127301392
24 × 13 × 1918604111188949
2016-05-13161918604111188949259,05026,861,52350,169,845

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-01-14T00:00:00ANONYMOUSv4_computers2000075000---0.006--0.811%
2011-04-14T22:43:00markrtiny1150002242500---0.059--3.271%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-11-21T00:00:00ANONYMOUSv4_computers21262--0.100--
2016-02-23T16:39:18Mark RoseManual testing262263--0.161--
2014-09-10T22:05:00NesowaManual testing263264--0.321--
2014-09-18T11:03:00monstManual testing264265--0.611--
2015-10-06T05:43:17Bruno VictalManual testing265266--1.222--
2016-03-16T23:48:48Gordon SpenceManual testing266267--2.444--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.347 GHz-days
Estimated T-Level:0.250
DigitsB1CurvesCompleteFacMiss
20110005 / 1000.05095.099%
25500005 / 2800.01898.227%

New Calculation Method

Total ECM effort:1.347 GHz-days
Estimated T-Level:0.250
DigitsB1CompleteFacMiss
20110000.16185.104%
25500000.01598.553%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.808
50000500000020.539


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-27T00:00:00ANONYMOUSv4_computersE3F60DB7B69DE6__1.084
1999-10-15T00:00:00ANONYMOUSv4_computers61529704C70F65AC1.084
2001-01-28T00:00:00ANONYMOUSv4_computers61529704C70F65AC1.084


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T06:42:57kkmrkkblmbrbkManual testing
4880676953819303591752097
73A44104715A91__no
2018-09-17T21:07:47ANONYMOUS
4880676953819303591752097
73A44104715A91__no


P-1 factor-bounds graph:
B1 = 115000, B2 = 2242500 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
B1 = 20000, B2 = 75000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-09-17T21:07:47+00:00