is 2 300973 - 1
has 90602 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
Actualunknown50000500000.000514.9676%0.000514.9676%14.9676%
PrimeNet2400.000052.5000%3200900000.000115.5744%0.000159.8978%7.3978%
GPU722440.000056.8182%55001400000.000111.2487%0.000161.6756%4.8574%
Difference-440.0000-56.8182%+44500-90000+0.0004+3.7189%+0.0004-46.7079%-46.7079%

Known prime factors (4 factors, 269.0 bits, 0.08937179% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
3009738630749903691239.6511433808
24 × 33 × 3319
-2733193.280e-72.128e-63.483e-6
30097337449114773950441931961.7006221341245552
24 × 3 × 129611275949
2013-12-24161296112759491.235472.813135.99
300973139463370059943351360866392683.52823168751027491394803
67 × 30519161 × 11330660569
2021-11-0230519161113306605697,724,4666.662911.889
300973208253514370690765725191532684.10734596710397725172312
23 × 3 × 7 × 11 × 53 × 26647 × 13255882559
2017-09-13266471325588255920,827,7437.447113.909

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
300973323213943728548532808180437721731101.350
3009731203673467713138909284653425927457979138123.179
3009731797383999097943357241469150554303745738123.757
3009735222779752136742289595427954386269448183732744145.228
3009737798909761746536225061714251186501577392852944145.806
30097329043736940963376999973259287344323858602629489676
7
51167.635
30097345076505842748270587636089906383628752970140445949
703663
56184.878
30097367310439675080918370642486437734198957311398247969
337201
56185.457
30097325066922980601736125833636872682242117850281364600
7932374237023
63207.285
30097310876622381665618158542485330778179650563460589012
12487239132337824031
70229.334
30097393873407573033032343624870419387011811854105332849
5074146336677867392009741757439
81268.985
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-02-06T16:50:45Lisander ViaeneManual testing5000050000-
skipped known factor: 863074990369
--0.001--9.761%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-04-23T16:33:48nordisweet1610000000101000000027--0.694
2021-04-30T06:41:46nordisweet1610000000101000000065--0.694


Trial Factoring results:
No TF results for M300973


ECM factoring results:

Old Calculation Method

Total ECM effort:14.217 GHz-days
Estimated T-Level:27.281
DigitsB1CurvesCompleteFacMiss
2011000578 / 1005.7800.300%
2550000578 / 2802.06412.644%
30250000292 / 6400.45663.343%

New Calculation Method

Total ECM effort:14.217 GHz-days
Estimated T-Level:27.281
DigitsB1CompleteFacMiss
201100033.5590.000%
25500004.4201.204%
302500000.44064.416%
3510000000.03596.607%
4030000000.00299.776%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002862.181
250000250000001294.920
25000025000000130.496
25000036750000713.134
25000036750000793.487


Lucas-Lehmer results:
No L-L results for M300973


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T14:48:34Oliver KruseOllaptopDCD95A71D7359F__?
2017-09-22T20:37:10Oliver KruseManual testingDCD95A71D7359F__?
2017-10-12T21:49:53Oliver KruseGTX-2DCD95A71D7359F__no
2017-12-11T03:53:50ATHxps
863074990369
3744911477395044193
20825351437069076572519153
DCD95A71D7359F__no
2020-04-17T22:17:09Oliver KruseAddPrpType5
863074990369
3744911477395044193
20825351437069076572519153
F7FF75E321128A__no
2021-11-02T16:53:10SRJ2877LTOS
863074990369
3744911477395044193
13946337005994335136086639
20825351437069076572519153
F7FF75E321128A03no


P-1 factor-bounds graph:
B1 = 50000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
230
240
250
260
270
280
290
2100
Last modified: 2022-02-06T16:50:45+00:00