is 2 168374347 - 1
has 50685729 decimal digits
takes 1,145.881 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2712.839460.5634%----2.839460.5634%0.0000%
PrimeNet27422.722462.1622%7000004000000028.03685.5275%50.759264.2536%2.0915%
GPU72278363.573864.1026%10000004000000030.83603.9980%394.409865.5377%1.4352%
Difference-7-360.7345-3.5392%-1000000-40000000-30.8360-3.9980%-391.5704-4.9744%-4.9744%

Known prime factors (1 factor, 70.6 bits, 0.00004194% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
16837434718138454103688755313372270.6205386347275244
22 × 3 × 13 × 61 × 3833 × 147673
2018-02-2738331476732.27500.11520.1483

P-1 results:
No P-1 results for M168374347


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-07-07T22:48:00sasaki3MATE_J263264--0.012--
2011-02-16T19:55:00dsls2264265--0.022--
2013-03-23T15:44:00tscibmthink265266--0.044--
2015-06-05T02:38:00vwflat4VM-104266267--0.089--
2016-03-31T14:12:25XZTManual testing267268--0.178--
2017-04-28T02:13:55Andrew BManual testing268269--0.355--
2018-02-20T11:00:22ZenghuiManual testing269270--0.710--
2018-02-20T16:21:05ZenghuiManual testing269270--0.710--
2018-03-19T08:09:58Ruediger EckhardManual testing270271*70.620220.8562,3531.758
2018-02-27T05:32:32ZenghuiManual testing27027170.620220.8562,3531.758


ECM factoring results:
No ECM results for M168374347


Lucas-Lehmer results:
No L-L results for M168374347


PRP results:
No PRP results for M168374347


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
271
270
269
268
267
266
265
264
250
260
270
280
290
2100
Last modified: 2018-03-19T08:09:58+00:00