is 2 3259771 - 1
has 981289 decimal digits
takes 0.342 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L98541A9E14899D77double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26818.285067.6471%10000001199121001.13897.5216%19.423970.0805%2.4334%
PrimeNet2600.047163.3333%140002600000.00422.7723%0.051364.3499%1.0165%
GPU722641.091965.6250%160002800000.00461.6558%1.096566.1942%0.5692%
Difference+4+17.1931+2.0221%+984000+119632100+1.1343+5.8658%+18.3274+3.8863%+3.8863%

Known prime factors (1 factor, 65.5 bits, 0.00200783% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3259771504251843111729409912065.4517734467284845
3 × 5 × 7 × 66749 × 1103561
2009-06-026674911035614.37420.01880.0207

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-12-25T20:19:25Jocelyn LaroucheManual testing108659108659---0.017--0.907%
2021-01-17T00:34:24Jocelyn LaroucheManual testing32597732597716-
skipped known factor: 50425184311172940991
--0.074--3.396%
2022-02-04T07:52:48Jocelyn LaroucheManual testing1000000119912100-
skipped known factor: 50425184311172940991
--1.139--7.522%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-08-24T00:00:00ANONYMOUSv4_computers21260--0.047--
2009-04-03T10:32:00S485122USB-Z260261--0.047--
2022-04-06T07:32:16LordJuliusManual testing21262--0.188--
2022-04-06T07:32:16LordJuliusManual testing262263--0.301--
2022-04-06T07:32:16LordJuliusManual testing263264--0.602--
2022-04-06T07:32:16LordJuliusManual testing264265--1.146--
2022-04-06T07:32:16LordJuliusManual testing26526665.451202.1360.6954.335
2022-04-06T07:32:16LordJuliusManual testing266267--4.585--
2021-04-15T01:50:48Jocelyn LaroucheManual testing267268--9.170--


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)
1999-07-26T00:00:00ANONYMOUSv4_computers98541A9E14899D770.342


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-02T20:36:26Oliver KruseGTX-0
50425184311172940991
6D847514BA060E__no
2017-12-14T15:45:23noknopcr2-srv
50425184311172940991
no
2017-12-14T23:37:57kkmrkkblmbrbkc4.xlarge
50425184311172940991
6D847514BA060E__no
2017-12-16T09:27:04kkmrkkblmbrbkc4.xlarge
50425184311172940991
011D1346BDF08D__no


P-1 factor-bounds graph:
B1 = 1000000, B2 = 119912100 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 325977, B2 = 3259771 (P-1 stage 2)
B1 = 325977 (P-1 stage 1)
B1 = 108659 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
TF factor-bounds graph:
268
267
266
265
264
263
262
261
260
250
260
270
280
290
2100
Last modified: 2022-04-06T07:32:16+00:00