is 2 3305381 - 1
has 995019 decimal digits
takes 0.347 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26818.032767.6471%330538186825880.20264.8712%18.235372.5182%9.1849%
PrimeNet2600.046563.3333%140002600000.00422.7792%0.050666.1126%2.7792%
GPU722641.076865.6250%170003000000.00491.7227%1.081867.3477%1.7227%
Difference+4+16.9559+2.0221%+313538+18382588+0.1977+3.1485%+17.1535+5.1705%+5.1705%

Known prime factors (3 factors, 261.1 bits, 0.00789799% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
3305381628685317213371445.8379510028
22 × 11 × 292 × 257
841841-2.053e-60.00010.0003
3305381352589747196710539536248892684.8665333571942186249324
22 × 32 × 29 × 1559 × 177949 × 18415181
177949184151812021-04-091,191,4570.17840.2854
3305381174086359312803407548844863710261959395340130.355263337810849646996138788332888496
24 × 32 × 61 × 107 × 2141 × 3041 × 8167 × 32251 × 35069 × 4658809
3506946588092021-03-305.236e+100.04370.0722

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3305381221667997062545901264949794221397555659340130.704
330538110944553802709051892009858919420486466533390308627
5161
54176.192
330538161381065420497068994707945483452677621025948799774
834401654696217
65215.221
330538138589374584779816047280295640083999212477802310410
51798983474443200440832082129
79261.059
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-01-03T02:34:56Jocelyn LaroucheManual testing330538330538---0.050--1.613%
2021-01-04T20:37:08Jocelyn LaroucheManual testing33053833053816---0.075--3.420%
2021-03-30T19:06:03Jocelyn LaroucheManual testing3305386610762640130.3550.1020.6940.2053.990%
2021-04-09T07:57:27Jocelyn LaroucheManual testing3305381868258862684.8660.2030.6940.4054.871%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2021-03-31T10:49:14Jocelyn LaroucheManual testing267268--9.043--


ECM factoring results:
Total ECM effort:0.437 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

ECM Summary

B1B2factorcurvesGHz-days
50000500000030.437


Lucas-Lehmer results:
Exponent "3305381" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-04T01:46:24Oliver KruseGTX-0
62868531721337
E8D0BA618BCD42__no
2017-12-14T18:02:07kkmrkkblmbrbkc4.xlarge
62868531721337
E8D0BA618BCD42__no
2021-03-30T19:27:01ATH5960X
62868531721337
1740863593128034075488448637102619593953
E8D0BA618BCD42C1no
2021-04-12T02:24:00Joe S.VMWare1
62868531721337
35258974719671053953624889
1740863593128034075488448637102619593953
E8D0BA618BCD42C1no


P-1 factor-bounds graph:
B1 = 330538, B2 = 18682588 (stage 2)
B1 = 330538, B2 = 6610762 (stage 2)
B1 = 330538, B2 = 3305381 (stage 2)
B1 = 330538 (stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
240
250
260
270
280
290
2100
2110
2120
2130
2140
Last modified: 2021-04-12T02:24:00+00:00