is 2 3052099 - 1
has 918774 decimal digits
takes 0.260 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L9FF0DD7F93AFA8AAdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26939.116368.1159%10552091199121000.92946.8898%40.045770.3127%2.1967%
PrimeNet2600.050363.3333%120002200000.00292.5231%0.053264.2585%0.9251%
GPU722641.166265.6250%140002200000.00311.4651%1.169366.1286%0.5036%
Difference+5+37.9501+2.4909%+1041209+119692100+0.9263+5.4246%+38.8764+4.1840%+4.1840%

Known prime factors (1 factor, 73.8 bits, 0.00241648% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3052099159210879821822879261592373.7532608219455231021
3 × 2693 × 322839392899
2013-10-152693322839392899890.062,170.74,054.3

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-02-07T00:00:00ANONYMOUSv4_computers2048204800---0.002--0.201%
2010-10-05T05:52:00markrtiny1100002447500---0.029--2.369%
2021-01-17T03:41:52Jocelyn LaroucheManual testing30520930520996---0.056--2.954%
2022-01-23T08:35:02Jocelyn LaroucheManual testing1055209119912100---0.929--6.890%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-06-03T00:00:00ANONYMOUSv4_computers21260--0.050--
2009-02-13T17:20:00Sturle Sundegouffy.ifi260261--0.050--
2011-03-21T11:28:00Sid & AndyBuzz261262--0.101--
2013-01-07T13:54:00dbaughManual testing262263--0.322--
2022-03-12T10:02:53LordJuliusManual testing263264--0.643--
2022-03-12T10:02:53LordJuliusManual testing264265--1.224--
2022-03-12T10:02:53LordJuliusManual testing265266--2.448--
2022-03-12T10:02:53LordJuliusManual testing266267--4.897--
2021-05-17T16:57:23Jocelyn LaroucheManual testing267268--9.79--
2021-12-15T11:27:46Jocelyn LaroucheManual testing268269--19.59--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.699 GHz-days
Estimated T-Level:0.300
DigitsB1CurvesCompleteFacMiss
20110006 / 1000.06094.148%
25500006 / 2800.02197.876%

New Calculation Method

Total ECM effort:0.699 GHz-days
Estimated T-Level:0.300
DigitsB1CompleteFacMiss
20110000.19482.403%
25500000.01798.266%
302500000.00199.892%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000060.699


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-12T00:00:00ANONYMOUSv4_computers9FF0DD7F93AFA8AA0.260


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-28T11:04:10Oliver KruseGTX-0
15921087982182287926159
78ACFCA620AB88__no
2017-12-11T00:57:48kkmrkkblmbrbkc4.xlarge
15921087982182287926159
78ACFCA620AB88__no


P-1 factor-bounds graph:
B1 = 1055209, B2 = 119912100 (P-1 stage 2)
B1 = 1055209 (P-1 stage 1)
B1 = 305209, B2 = 3052099 (P-1 stage 2)
B1 = 305209 (P-1 stage 1)
B1 = 110000, B2 = 2447500 (P-1 stage 2)
B1 = 110000 (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: 2022-03-12T10:02:53+00:00