is 2 6862433 - 1
has 2065799 decimal digits
takes 1.496 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L80B8E4CCFD0C2833double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.329965.6716 %25000875000.00900.9299 %4.338965.9908 %
Target2674.329965.6716 %4000045000000.08952.1726 %4.419466.4175 %
Difference----15000-4412500-0.0805-1.2427 %-0.0805-0.4266 %

Known prime factors (1 factor, 77.4 bits, 0.00112844% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
68624332047551375714451188264732477.43814918552761931892
22 × 32 × 1453 × 140551 × 2029199
2011-04-0414055120291995,051.10.07700.0904

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-08-12dtlgcv4_computers2500087500--0.0090.930%
2011-04-04James HeinrichQ66002477.4380.2270.000%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-07-29ANONYMOUSv4_computers212610.022
1998-08-09ANONYMOUSv4_computers212620.045
2004-11-22David Campeauv4_computers212630.143


ECM factoring results:
Total ECM effort:0.332 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.332


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-15ANONYMOUSv4_computersAC446D59BD2FF9091.496
1999-06-15ANONYMOUSv4_computers80B8E4CCFD0C28331.496
2001-10-06dtlgcv4_computers80B8E4CCFD0C28331.496


PRP results:
dateuseridcompidcofactorsres64
2018-01-17Oliver KruseGTX-5
204755137571445118826473
8E7C76F3966E7CAB
2019-01-05kkmrkkblmbrbkc5.large
204755137571445118826473
8E7C76F3966E7CAB


CERT results:
No CERT results for M6862433


P-1 factor-bounds graph:
B1 = 25000, B2 = 87500 (P-1 stage 2)
B1 = 25000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
263
262
261
this exponent TF target: 67
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00