is 2 5864207 - 1
has 1765303 decimal digits
takes 1.039 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LEF00B314974CFF91double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2675.067065.6716%6500010887500.03102.4691%5.098066.5192%0.8476%
PrimeNet2620.104862.9032%260006000000.01473.3173%0.119564.1338%1.2306%
GPU722662.518465.1515%400008000000.02092.3389%2.539365.9666%0.8151%
Difference+1+2.5486+0.5201%+25000+288750+0.0101+0.1302%+2.5587+0.5527%+0.5527%

Known prime factors (1 factor, 71.9 bits, 0.00122663% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
586420745047458512397935401032271.932384088236588493
113 × 3399010943261
2011-05-261133399010943261127.3047,58888,881

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2000-09-29T00:00:00ANONYMOUSv4_computers25000243750---0.009--1.303%
2011-04-27T19:41:00harleeP4_2600650001088750---0.031--2.469%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-05-01T00:00:00Sturle Sundev4_computers21261--0.052--
1998-06-14T00:00:00ANONYMOUSv4_computers21262--0.105--
2009-03-21T23:21:00GrunwalderGIMPManual testing262263--0.167--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CurvesCompleteFacMiss

New Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-10-04T00:00:00ANONYMOUSv4_computersEF00B314974CFF911.039
2000-12-07T00:00:00ANONYMOUSv4_computersEF00B314974CFF911.039


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-20T19:27:42kkmrkkblmbrbkManual testing
4504745851239793540103
0BA1E1563E8060__no
2018-08-31T09:34:48arnaudstm-11-010
4504745851239793540103
0BA1E1563E8060__no


P-1 factor-bounds graph:
B1 = 65000, B2 = 1088750 (P-1 stage 2)
B1 = 65000 (P-1 stage 1)
B1 = 25000, B2 = 243750 (P-1 stage 2)
B1 = 25000 (P-1 stage 1)
101
102
103
104
105
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
TF factor-bounds graph:
267
263
262
261
250
260
270
280
290
2100
Last modified: 2018-08-31T09:34:48+00:00