is 2 805355321 - 1
has 242436109 decimal digits
takes 31,039.736 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
Actual2700.296757.1429%----0.296757.1429%
Target2844,864.769064.2857%4500000220000000907.63704.4837%5,772.406065.8870%
Difference-14-4,864.4723-7.1429%-4500000-220000000-907.6370-4.4837%-5,772.1093-8.7442%

Known prime factors (1 factor, 65.1 bits, 0.00000809% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
805355321399177662477654473032065.11424782704731
33 × 917877953		2018-03-31279178779530.01652,794.75,219.8

P-1 results:
No P-1 results for M805355321


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-07-13Architects CubedManual testing263264--0.002--
2012-02-13OS1L7264265--0.005--
2012-02-13OS1L7265266--0.009--
2018-03-31TJAOIManual testing265266*65.114200.00767,8520.016
2014-12-06sasakii7-win266267--0.019--
2015-06-17sasakii7-win267268--0.037--
2016-10-11ramgeisManual testing268270--0.223--


ECM factoring results:
No ECM results for M805355321


Lucas-Lehmer results:
No L-L results for M805355321


PRP results:
No PRP results for M805355321


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
270
268
267
266
265
264
this exponent TF target: 84
TF double-checked to: 67.7
250
260
270
280
290
Last modified: 2023-03-25T13:08:14+00:00