is 2121271-1
has 36,507 decimal digits
takes 0.000 GHz-days to do one L-L 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
Actualunknown100,000,0002,000,000,0000.7705169.4318%0.7705169.4318%111.9318%
PrimeNet2400.000057.5000%1,30024,0000.00009.1514%0.000066.6514%9.1514%
GPU722440.000061.3636%1,90034,0000.00005.8154%0.000067.1791%5.8154%
Difference-440.0000-61.3636%+99,998,100+1,999,966,000+0.7705+163.6164%+0.7705+102.2527%+102.2527%

Known prime factors (2 factors, 200.3 bits, 0.16520512% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
121271146495369927.126604
22 × 151
4151-1.667e-104.547e-85.979e-8
12127113941303877717725602187461873829512286354071036635
649
53173.22057479957606178416942993221272313711795705778944
28 × 563 × 46147 × 284293 × 320239 × 447571 × 981311 × 5360339 × 40320263
5,360,33940,320,2632014-12-171.575e+120.02750.0413

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
12127120423364559073890899331994343800858454794733011641
51918809481
61200.346
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-12-17T14:20:00BloodIceURM2100,000,0002,000,000,00053173.2200.3790.0010.75741.134%
2017-03-10T11:35:02kkmrkkblmbrbkManual testing100,000,0002,000,000,00012---0.771--41.134%


Trial Factoring results:
Exponent "121271" not found


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,0002810.769
250,00025,000,0005858.001
1,000,000100,000,00061433.59


Lucas-Lehmer results:
Exponent "121271" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T21:30:55Oliver KruseDoppelherz
146495369
13941303877717725602187461873829512286354071036635
649
D49B4C387BA8B578no
2017-09-22T10:00:54Oliver KruseManual testing
146495369
13941303877717725602187461873829512286354071036635
649
D49B4C387BA8B578no
2017-10-09T03:06:35Chang Chia-TchehomuraD49B4C387BA8B5__?
2017-10-13T19:02:01kkmrkkblmbrbkManual testing
146495369
13941303877717725602187461873829512286354071036635
649
D49B4C387BA8B5__no
2020-04-17T15:34:34Oliver KruseAddPrpType5
146495369
13941303877717725602187461873829512286354071036635
649
69EB1886ACF050__no


P-1 factor-bounds graph:
B1 = 100,000,000, B2 = 2,000,000,000 (stage 2)
B1 = 100,000,000 (stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
220
230
240
250
260
270
280
290
2100
2110
2120
2130
2140
2150
2160
2170
2180
Last modified: 2020-04-17T15:34:34+00:00