is 2 9569107 - 1
has 2880589 decimal digits
takes 2.791 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LCB3DF898073BD43Fdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2673.105264.1791%11500021850000.09633.4678%3.201565.4213%1.2422%
PrimeNet2640.372062.5000%4000011000000.04133.5045%0.413363.8142%1.3142%
GPU722686.228964.7059%6000014000000.05632.4668%6.285165.5765%0.8706%
Difference-1-3.1237-0.5268%+55000+785000+0.0401+1.0010%-3.0836-0.1552%-0.1552%

Known prime factors (1 factor, 69.8 bits, 0.00072919% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
956910710114600173501566522092269.77752850282547272
23 × 7 × 233 × 4050450839
2014-10-18233405045083922.62493.329174.31

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-05-26T00:00:00Steve Roffersv4_computers50000850000---0.040--2.379%
2013-01-19T05:49:00NesowaEPC1150002185000---0.096--3.468%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-05-16T00:00:00ANONYMOUSv4_computers21264--0.372--
2013-08-31T12:57:00NesowaManual testing264265--0.390--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.444 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.444 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.444


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-09-23T00:00:00ANONYMOUSv4_computersCB3DF898073BD43F2.791
2003-06-01T00:00:00Steve Roffersv4_computersCB3DF898073BD43F2.791


PRP results:
dateuseridcompidcofactorsres64PRP
2019-09-26T08:53:57mnd9f4
1011460017350156652209
9307C311D21DC2__no
2020-12-12T22:31:43Oliver KruseThreadripper-PC
1011460017350156652209
9307C311D21DC2F1no


P-1 factor-bounds graph:
B1 = 115000, B2 = 2185000 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
B1 = 50000, B2 = 850000 (P-1 stage 2)
B1 = 50000 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
265
264
250
260
270
280
290
2100
Last modified: 2020-12-12T22:31:43+00:00