is 2 305933 - 1
has 92096 decimal digits
takes 0.002 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actualunknown50000500000.000514.9965%0.000514.9965%14.9965%
PrimeNet2400.000052.5000%3200900000.000115.6086%0.000159.9141%7.4141%
GPU722440.000056.8182%55001500000.000111.4243%0.000161.7514%4.9332%
Difference-440.0000-56.8182%+44500-100000+0.0004+3.5721%+0.0004-46.7550%-46.7550%

Known prime factors (2 factors, 141.3 bits, 0.04619708% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
30593356291445609591342.3569199963
31 × 296773
-312967732.555e-60.00020.0003
3059336233958525589009695113553617693098.9761018843754284272977271748
22 × 251 × 3673 × 989239 × 279287640221
2021-09-189892392792876402213.146e+11156.91293.04

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
305933350918537275633609470755792269018811857647143141.332
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-02-06T16:51:55Lisander ViaeneManual testing5000050000---0.001--9.783%


Trial Factoring results:
No TF results for M305933


ECM factoring results:

Old Calculation Method

Total ECM effort:16.832 GHz-days
Estimated T-Level:27.719
DigitsB1CurvesCompleteFacMiss
2011000629 / 1006.2900.180%
2550000629 / 2802.24610.535%
30250000348 / 6400.54458.032%

New Calculation Method

Total ECM effort:16.832 GHz-days
Estimated T-Level:27.719
DigitsB1CompleteFacMiss
201100038.0650.000%
25500005.2380.531%
302500000.52958.912%
3510000000.04295.857%
4030000000.00399.723%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002812.145
250000250000001445.495
250000385000002009.012
2500003850000040.180


Lucas-Lehmer results:
No L-L results for M305933


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T15:40:55Oliver KruseOllaptop
5629144560959
C86B2A71E680A9__no
2017-09-22T20:37:25Oliver KruseManual testing
5629144560959
C86B2A71E680A9__no
2017-10-12T22:32:55Oliver KruseGTX-1C86B2A71E680A9__no
2017-12-11T08:55:28ATHxps
5629144560959
C86B2A71E680A9__no
2020-04-18T15:02:25Oliver KruseAddPrpType5
5629144560959
B913B897FAB6C3__no
2021-09-18T04:49:09SRJ2877LTOS
5629144560959
623395852558900969511355361769
B913B897FAB6C3C9no
2021-09-18T13:09:09JackBlockWin10
5629144560959
623395852558900969511355361769
B913B897FAB6C3C9no


P-1 factor-bounds graph:
B1 = 50000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
240
250
260
270
280
290
2100
Last modified: 2022-02-06T16:51:55+00:00