is 2 821594317 - 1
has 247324534 decimal digits
takes 35,724.138 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
Actual2759.313560.0000%----9.313560.0000%
Target2844,768.615864.2857%45000002200000001,023.96714.4930%5,792.582965.8904%
Difference-9-4,759.3023-4.2857%-4500000-220000000-1,023.9671-4.4930%-5,783.2694-5.8904%

Known prime factors (7 factors, 321.6 bits, 0.00003915% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
821594317328637726811134.93620
22 × 5
2008-05-12452.798e-120.00030.0005
8215943171561029202311237.18495
5 × 19
2008-05-125192.274e-110.00040.0006
8215943175455386264891238.989332
22 × 83
2008-05-124834.777e-110.00050.0005
82159431723908394624711341.1211455
3 × 5 × 97
2008-05-125974.689e-100.00060.0006
8215943173149450359128791548.162191667
3 × 7 × 9127
2008-05-12791276.784e-80.03180.0585
8215943175248985340563271548.899319439
319439
2008-05-1213194395.215e-81.09732.0494
82159431759735018532116602666332272.3393635311083348
22 × 3 × 7 × 5581 × 7754437
2013-02-24558177544372.158926.96949.750

120 Composite Factors:
P-1 results:
No P-1 results for M821594317


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2013-02-24Never Odd Or EvenManual testing??72.339220.99577,2392.151
2019-06-16Seth_TrManual testing266267--0.018--
2019-06-17Seth_TrManual testing267268--0.036--
2019-06-18Seth_TrManual testing268269--0.073--
2019-06-20Seth_TrManual testing269270--0.146--
2019-06-21Seth_TrManual testing270271--0.291--
2019-06-24Seth_TrManual testing271272--0.582--
2021-08-06Seth_TrManual testing272273
skipped known factors(?)
--1.164--
2021-08-06Seth_TrManual testing273274--2.328--
2019-12-22Seth_TrManual testing274275--4.657--


ECM factoring results:
No ECM results for M821594317


Lucas-Lehmer results:
No L-L results for M821594317


PRP results:
No PRP results for M821594317


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
106
107
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