is 2 6926261 - 1
has 2085013 decimal digits
takes 1.510 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.290065.6716%----4.290065.6716%
Target2674.290065.6716%450009000000.02902.2366%4.319066.4394%
Difference----45000-900000-0.0290-2.2366%-0.0290-0.7678%

Known prime factors (1 factor, 60.2 bits, 0.00086910% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
692626113207162762302042231960.19695341214851
95341214851		1998-07-111953412148510.03531,642.43,067.5

P-1 results:
No P-1 results for M6926261


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-11ANONYMOUSv4_computers??60.196190.0137.2950.063


ECM factoring results:
No ECM results for M6926261


Lucas-Lehmer results:
No L-L results for M6926261


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-24Oliver KruseGTX-7
1320716276230204223
F1E5535CC099C4__no
2019-01-27kkmrkkblmbrbkc5.large
1320716276230204223
F1E5535CC099C489no


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
2
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00