is 2 51211507 - 1
has 15416200 decimal digits
takes 93.817 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2704.666062.8571%----4.666062.8571%0.0000%
PrimeNet2692.331262.3188%22000090000001.85515.1473%4.186364.2584%1.9396%
GPU7227337.351864.3836%340000110000002.44593.7977%39.797765.7362%1.3526%
Difference-3-32.6859-1.5264%-340000-11000000-2.4459-3.7977%-35.1318-2.8790%-1.3526%

Known prime factors (4 factors, 213.6 bits, 0.00041707% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
51211507238645622631134.474233
233
-12334.694e-113.623e-56.386e-5
51211507144570646563346871753.683141150549
3 × 3259 × 14437
2014-10-063259144372.500e-50.01030.0176
5121150720827956400857397271960.85320335230909
32 × 7 × 19 × 107 × 158771
2016-03-101071587710.00340.02320.0429
51211507275486921233294436392064.579268969746617
11 × 13 × 17 × 110641607
2017-11-14171106416070.133316.01229.907

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
512115073450115196313158352781166812788.157
51211507497050062339310743734041222012995.327
512115076574374784414131825840647950573099.053
512115073011111123465152924122016488401044935114.536
5121150739827322322443188179821168468720599336118.261
512115075737829584453492483679625078866974655338125.432
5121150771858848886746022268526377096559353330308608745149.010
51211507950461613332515226597567915127195109945524215946152.735
51211507136930791372673788204574924039117202155849812943949159.906
5121150782952173289474130231698350593904234493556164223258
3911
54179.114
5121150719796173043178209034421359039826306323308233533934
029071431550593
65213.589
P-1 results:
No P-1 results for M51211507


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-10-06T11:35:00TJAOIManual testing253254*53.683171.56712e-6193.63.23316e-6
2016-03-10T12:30:43TJAOIManual testing260261*60.853190.000193.50.001
2022-04-05T02:43:21LordJuliusManual testing261264--0.064--
2017-11-14T13:37:21TJAOIManual testing264265*64.579200.064193.40.131
2022-11-25T06:49:09LordJuliusManual testing2126653.683172.49979e-5193.65.15736e-5
2022-11-25T06:49:09LordJuliusManual testing2126660.853190.003193.50.007
2022-11-25T06:49:09LordJuliusManual testing2126634.474114.69445e-11193.69.68521e-11
2022-11-25T06:49:09LordJuliusManual testing2126664.579200.133193.40.275
2022-11-25T06:49:09LordJuliusManual testing266267--0.292--
2022-11-25T06:49:09LordJuliusManual testing267268--0.584--
2022-11-25T06:49:09LordJuliusManual testing268269--1.167--
2022-11-25T06:49:09LordJuliusManual testing269270--2.335--


ECM factoring results:
No ECM results for M51211507


Lucas-Lehmer results:
No L-L results for M51211507


PRP results:
No PRP results for M51211507


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
270
269
268
267
266
265
264
261
254
230
240
250
260
270
280
290
2100
Last modified: 2022-11-25T06:49:09+00:00