is 2 776304517 - 1
has 233690946 decimal digits
takes 29,920.070 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
Actual2759.856860.0000%----9.856860.0000%
Target2845,046.818064.2857%4500000200000000846.74114.3969%5,893.559265.8560%
Difference-9-5,036.9612-4.2857%-4500000-200000000-846.7411-4.3969%-5,883.7023-5.8560%

Known prime factors (7 factors, 314.9 bits, 0.00004057% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
776304517232891355111134.43915
3 × 5		-352.958e-120.00020.0003
776304517357100077831135.05623
23		-1235.926e-120.00010.0001
776304517916039330071136.41559
59		-1591.194e-110.00020.0003
77630451710371428347131339.916668
22 × 167		-41671.080e-100.00070.0009
776304517989679576542631446.49263743
63743		2012-03-181637432.170e-80.19410.3625
77630451796436382046053991653.0986211247
7 × 337 × 2633		-33726332.204e-60.02580.0383
7763045178379920616145964182072169.505539731537859
1289 × 418721131		2019-06-2012894187211310.18381,275.02,381.2

120 Composite Factors:
P-1 results:
No P-1 results for M776304517


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2012-03-18AxonManual testing??46.492149.62656e-965,7342.11493e-8
2019-06-16Seth_TrManual testing266267--0.019--
2019-06-17Seth_TrManual testing267268--0.039--
2019-06-18Seth_TrManual testing268269--0.077--
2019-06-20Seth_TrManual testing26927069.505210.03065,7330.066
2021-08-06Seth_TrManual testing269270
skipped known factors(?)
--0.154--
2021-08-06Seth_TrManual testing270271--0.308--
2021-08-06Seth_TrManual testing271272--0.616--
2019-12-08Seth_TrManual testing272273--1.232--
2019-12-11Seth_TrManual testing273274--2.464--
2019-12-23Seth_TrManual testing274275--4.929--


ECM factoring results:
No ECM results for M776304517


Lucas-Lehmer results:
No L-L results for M776304517


PRP results:
No PRP results for M776304517


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
2
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