is 2 58904393 - 1
has 17731990 decimal digits
takes 130.858 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L5527D0F1C1E533EAdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27464.950464.8649%545000102187503.45333.6717%68.403766.1549%1.2900%
PrimeNet2692.026862.3188%260000120000002.89795.6381%4.924764.4433%2.1245%
GPU7227332.473764.3836%400000140000003.67534.1435%36.149065.8593%1.4758%
Difference+1+32.4767+0.4813%+145000-3781250-0.2220-0.4718%+32.2547+0.2956%+0.2956%

Known prime factors:
No known factors for M58904393

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-08-09T06:31:00rx7350RMCpc154500010218750---3.453--3.672%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-23T00:00:00ANONYMOUSv4_computers21253--2.03707e-5--
2000-02-09T00:00:00ANONYMOUSv4_computers21254--4.07414e-5--
2000-06-23T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-06-03T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-11-02T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-07-30T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-01-18T00:00:001997rj7v4_computers21260--0.003--
2008-11-14T05:34:00curtiscv4_computers21270--4.057--
2008-11-18T00:00:00curtiscv4_computers21270--4.057--
2011-10-20T23:11:00rlakeManual testing270271--4.060--
2012-07-17T20:27:00BigBrotherManual testing271272--8.119--
2012-07-17T20:27:00BigBrotherManual testing272273--16.24--
2019-01-04T03:52:17-Anonymous-Manual testing273274--32.48--


ECM factoring results:
No ECM results for M58904393


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-07-06T05:21:00curtiscgrn209--12l5527D0F1C1E533EA130.9
2021-08-12T20:28:17-Anonymous-5527D0F1C1E533EA130.9


PRP results:
No PRP results for M58904393


P-1 factor-bounds graph:
B1 = 545000, B2 = 10218750 (P-1 stage 2)
B1 = 545000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-08-12T20:28:17+00:00