is 2 1995061 - 1
has 600574 decimal digits
takes 0.131 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
Actual26714.893768.6567%----14.893768.6567%0.0000%
PrimeNet2580.019263.7931%80001400000.00142.4777%0.020764.6902%0.8971%
GPU722620.307966.1290%80001100000.00131.2360%0.309266.5477%0.4186%
Difference+5+14.5858+2.5277%-8000-110000-0.0013-1.2360%+14.5845+2.1090%+2.1090%

Known prime factors (3 factors, 168.3 bits, 0.00843399% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1995061446095639611135.37711180
22 × 5 × 13 × 43
-13433.258e-91.395e-62.522e-6
199506156267561773109061111962.2871410171462755
5 × 11 × 17 × 67 × 22510519
2016-07-2167225105190.47780.11690.2184
199506117888570827833509715432270.600448321400394111
34 × 17327 × 319433953
2021-07-1017327319433953188.031.66083.0990

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
19950612510071395847027231415202656713097.664
19950617980013445151176707095894936182332105.976
19950611006546264087758703063150317722150579927341132.887
199506144901589947528469181430010720583748121740132080035
3
51168.263
P-1 results:
No P-1 results for M1995061


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-07-20T14:32:22TJAOIManual testing262263*62.287190.1700.2660.345


ECM factoring results:

Old Calculation Method

Total ECM effort:3.534 GHz-days
Estimated T-Level:2.050
DigitsB1CurvesCompleteFacMiss
201100041 / 1000.41066.228%
255000041 / 2800.14686.356%

New Calculation Method

Total ECM effort:3.534 GHz-days
Estimated T-Level:2.050
DigitsB1CompleteFacMiss
20110001.59920.203%
25500000.14786.290%
302500000.00999.073%


ECM Summary

B1B2factorcurvesGHz-days
50000480000070.582
500005000000201.691
50000500000070.592
50000659746870.668


Lucas-Lehmer results:
No L-L results for M1995061


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-05T17:10:32Oliver KruseGTX-2
44609563961
5626756177310906111
BD2785F3C41EE1__no
2017-11-13T00:59:41kkmrkkblmbrbkc4.xlarge
44609563961
5626756177310906111
BD2785F3C41EE1__no
2021-07-15T10:55:59GURA LOVE
44609563961
5626756177310906111
1788857082783350971543
BC5742C974F94764no


P-1 factor-bounds graph:
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
263
230
240
250
260
270
280
290
2100
Last modified: 2022-05-26T20:21:32+00:00