is 2 63329491 - 1
has 19064077 decimal digits
takes 148.766 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L1B2AA6D37CB126__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27460.412164.8649%570000112575003.92493.8006%64.336966.2002%1.3353%
PrimeNet2703.773162.8571%260000120000003.06435.1562%6.837464.7723%1.9151%
GPU7227460.412164.8649%400000140000003.88633.7859%64.298466.1950%1.3302%
Difference---+170000-2742500+0.0386+0.0147%+0.0386+0.0052%+0.0052%

Known prime factors:
No known factors for M63329491

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-06-12T00:40:00NesowaAce57000011257500---3.925--3.801%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17T00:00:00ANONYMOUSv4_computers21250--2.36841e-6--
2003-07-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2016-02-23T17:18:45Mark RoseManual testing259263--0.024--
2009-02-18T20:16:00Wojciech Florekarmada2263264--0.031--
2009-10-30T13:52:00xtuhksa-192.168.0.5264265--0.059--
2009-11-03T11:11:00PerendiePC2D265266--0.118--
2009-11-07T11:15:00PerendiePC2D266267--0.236--
2009-11-11T14:08:00PerendiePC2D267268--0.472--
2009-11-14T18:01:00seekuaseekua-home268269--0.944--
2011-12-22T23:18:00ANONYMOUS269270--1.888--
2013-04-10T16:40:00Bill StaffenManual testing270271--3.776--
2013-05-12T18:08:00GrunwalderGIMPManual testing271272--7.552--
2013-05-12T18:08:00GrunwalderGIMPManual testing272273--15.10--
2013-05-12T18:08:00GrunwalderGIMPManual testing273274--30.21--


ECM factoring results:
No ECM results for M63329491


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2014-08-18T09:08:00Arthur Rosenthal3459633u_ml151B2AA6D37CB126__148.8


PRP results:
No PRP results for M63329491


P-1 factor-bounds graph:
B1 = 570000, B2 = 11257500 (P-1 stage 2)
B1 = 570000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
263
259
250
250
260
270
280
290
2100
Last modified: 2016-02-23T17:18:45+00:00