is 2 3235093 - 1
has 973861 decimal digits
takes 0.275 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L6910BB83B6FC85A4double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26818.424567.6471%10735081199121000.93157.5733%19.356070.0973%2.4502%
PrimeNet2600.047563.3333%140002600000.00342.7686%0.050964.3485%1.0151%
GPU722641.100265.6250%160002800000.00371.6534%1.104066.1934%0.5684%
Difference+4+17.3242+2.0221%+1057508+119632100+0.9278+5.9199%+18.2520+3.9039%+3.9039%

Known prime factors (1 factor, 72.8 bits, 0.00225070% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
323509382918169511773080650712272.8121281542285055995
5 × 87797 × 2919330467
2016-08-24877972919330467436.0919.63936.661

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-03T21:38:00Carsten Kossendeydurandal15000191250---0.003--0.784%
2011-09-28T23:40:00markrtiny2000004500000---0.054--3.413%
2020-12-25T20:19:14Jocelyn LaroucheManual testing107836107836---0.013--0.902%
2021-01-18T06:10:46Jocelyn LaroucheManual testing32350932350936---0.060--3.384%
2022-01-24T05:49:01Jocelyn LaroucheManual testing1073508119912100---0.932--7.573%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-05-27T00:00:00ANONYMOUSv4_computers21260--0.047--
2009-04-06T07:08:00S485122USB-A260261--0.047--
2022-04-18T00:20:57LordJuliusManual testing21262--0.190--
2011-07-25T20:43:00Carsten KossendeyManual testing261263--0.398--
2022-04-18T00:20:57LordJuliusManual testing262263--0.303--
2015-02-15T12:51:00VictordeHollanderManual testing263264--0.607--
2022-04-18T00:20:57LordJuliusManual testing263264--0.607--
2015-02-15T12:51:00VictordeHollanderManual testing264265--1.155--
2022-04-18T00:20:57LordJuliusManual testing264265--1.155--
2015-06-24T21:57:00ThaManual testing265266--2.310--
2022-04-18T00:20:57LordJuliusManual testing265266--2.310--
2022-04-18T00:20:57LordJuliusManual testing266267--4.620--
2021-07-06T11:17:32Jocelyn LaroucheManual testing267268--9.240--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.059 GHz-days
Estimated T-Level:0.450
DigitsB1CurvesCompleteFacMiss
20110009 / 1000.09091.352%
25500009 / 2800.03296.831%

New Calculation Method

Total ECM effort:1.059 GHz-days
Estimated T-Level:0.450
DigitsB1CompleteFacMiss
20110000.34670.740%
25500000.03296.848%
302500000.00299.798%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000091.059


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-06-06T00:00:00ANONYMOUSv4_computers6910BB83B6FC85A40.275


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-02T08:15:53Oliver KruseGTX-1
8291816951177308065071
93292C9CC1DCED__no
2017-12-13T15:20:20kkmrkkblmbrbkc4.xlarge
8291816951177308065071
93292C9CC1DCED__no


P-1 factor-bounds graph:
B1 = 1073508, B2 = 119912100 (P-1 stage 2)
B1 = 1073508 (P-1 stage 1)
B1 = 323509, B2 = 3235093 (P-1 stage 2)
B1 = 200000, B2 = 4500000 (P-1 stage 2)
B1 = 323509 (P-1 stage 1)
B1 = 200000 (P-1 stage 1)
B1 = 107836 (P-1 stage 1)
B1 = 15000, B2 = 191250 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
268
267
266
265
264
263
262
261
260
250
260
270
280
290
2100
Last modified: 2022-04-18T00:20:57+00:00