is 2 1467097 - 1
has 441641 decimal digits
takes 0.056 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L8FAEDAFEB3C9D82Fdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26720.253568.6567%800000160000000.09015.2637%20.343770.3065%1.6498%
PrimeNet2560.006562.5000%70001200000.00072.9107%0.007363.5915%1.0915%
GPU722600.104765.0000%65001000000.00061.4465%0.105365.5063%0.5063%
Difference+7+20.1489+3.6567%+793500+15900000+0.0895+3.8172%+20.2384+4.8003%+4.8003%

Known prime factors (1 factor, 80.2 bits, 0.00546564% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
146709713755792725080227280905832580.186468809926169852003
112 × 26142029 × 148208167
2009-10-1126142029148208167243,6031.81552.9454

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-09-29T00:00:00Team Prime Ribv4_computers20000265000---0.002--0.956%
2009-04-25T10:19:00axnManual testing80000016000000---0.090--5.264%
2016-03-17T19:14:43alpertronManual testing5000001500000012---0.071--4.935%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-10-06T00:00:00ANONYMOUSv4_computers21257--0.013--
2003-07-30T00:00:00ANONYMOUSv4_computers21258--0.026--


ECM factoring results:

Old Calculation Method

Total ECM effort:25.445 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000298 / 1002.9805.004%
2550000298 / 2801.06434.432%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.445 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100014.5380.000%
25500001.64019.395%
302500000.14086.925%
3510000000.01099.024%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000024811.76
250000350000005013.68


Lucas-Lehmer results:
No L-L results for M1467097


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-01T04:10:27Oliver KruseGTX-1
1375579272508022728090583
FB63974B012FCA__no
2017-10-28T01:35:36kkmrkkblmbrbkc4.xlarge
1375579272508022728090583
FB63974B012FCA__no


P-1 factor-bounds graph:
B1 = 800000, B2 = 16000000 (P-1 stage 2)
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 800000 (P-1 stage 1)
B1 = 500000 (P-1 stage 1)
B1 = 20000, B2 = 265000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
103
104
105
106
107
108
103
104
105
106
107
108
109
TF factor-bounds graph:
267
258
257
250
260
270
280
290
2100
Last modified: 2021-12-03T11:50:28+00:00