is 2 54394253 - 1
has 16374302 decimal digits
takes 107.466 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L6A4EFD863CEE4BD9double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27470.335864.8649%575000132250003.62163.8573%73.957566.2201%1.3553%
PrimeNet2692.194862.3188%240000100000002.21095.3482%4.405764.3341%2.0153%
GPU7227335.166364.3836%360000120000002.84813.9245%38.014465.7813%1.3978%
Difference+1+35.1695+0.4813%+215000+1225000+0.7736-0.0673%+35.9431+0.4388%+0.4388%

Known prime factors:
No known factors for M54394253

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-03-01T00:53:00Adam Stylinskieggsbenedict57500013225000---3.622--3.857%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-08T00:00:00ANONYMOUSv4_computers21253--2.20597e-5--
2000-01-12T00:00:00ANONYMOUSv4_computers21253--2.20597e-5--
2000-03-01T00:00:00ANONYMOUSv4_computers21254--4.41195e-5--
2000-05-31T00:00:00ANONYMOUSv4_computers21256--0.000--
2001-08-31T00:00:00ANONYMOUSv4_computers21257--0.000--
2002-09-07T00:00:00ANONYMOUSv4_computers21258--0.001--
2003-04-27T00:00:00oerwinv4_computers21259--0.001--
2003-11-28T00:00:00oerwinv4_computers21262--0.011--
2008-06-15T00:10:00Corbyguymonaco262263--0.018--
2008-12-15T00:19:001997rj7Manual testing21264--0.065--
2008-12-25T08:37:00b.e.wilsonGaming264265--0.069--
2008-12-26T06:35:00Sturle Sundegoomba.ifi265266--0.137--
2009-01-01T12:43:00ahmeraliv4_computers21270--4.393--
2009-01-14T00:00:00ahmeraliv4_computers21270--4.393--
2011-08-18T14:21:00dabunnies270271--4.396--
2012-06-02T23:04:00XyzzyManual testing271272--8.792--
2016-02-11T21:50:02Judge HaleManual testing272273--17.58--
2019-07-29T23:50:09Mark RoseManual testing273274--35.17--


ECM factoring results:
No ECM results for M54394253


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2012-08-23T12:25:00curtiscwd-105--10c6A4EFD863CEE4BD9107.5
2020-12-23T12:57:13Team_InspectorFishbeck6A4EFD863CEE4BD9107.5


PRP results:
No PRP results for M54394253


P-1 factor-bounds graph:
B1 = 575000, B2 = 13225000 (P-1 stage 2)
B1 = 575000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-12-23T12:57:13+00:00