is 2 64101139 - 1
has 19296366 decimal digits
takes 155.490 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-LA33958685AFF82__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275119.372465.3333%55000093500003.62083.3009%122.993366.4777%1.1443%
PrimeNet2703.727762.8571%280000120000003.23075.2146%6.958464.7940%1.9369%
GPU7227459.684864.8649%400000140000004.01313.7917%63.697966.1971%1.3322%
Difference+1+59.6876+0.4685%+150000-4650000-0.3922-0.4908%+59.2954+0.2806%+0.2806%

Known prime factors:
No known factors for M64101139

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-09-08T20:04:00Charlie_TangoLT-25500009350000---3.621--3.301%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17T00:00:00ANONYMOUSv4_computers21250--2.33990e-6--
2003-08-25T00:00:00ANONYMOUSv4_computers21259--0.001--
2004-01-18T00:00:00AxelFoxv4_computers21260--0.002--
2016-02-23T17:19:05Mark RoseManual testing260263--0.023--
2009-03-07T03:26:00Sturle Sundegnom.ifi263264--0.031--
2009-03-15T18:39:00David Bernier264265--0.058--
2009-03-21T02:01:00ANONYMOUSC1F84B3FE265266--0.117--
2009-03-21T23:42:00Sturle Sundegimo.ifi266267--0.233--
2009-03-22T13:15:00Sturle Sundegimo.ifi267268--0.466--
2010-04-12T03:24:00eon_blue_apocalypseBarolo268269--0.933--
2012-01-26T16:40:00america64Manual testing269270--1.865--
2012-06-03T00:25:00vats09AX2_64270271--3.730--
2013-08-06T04:38:00RichD0Manual testing271272--7.461--
2013-08-31T13:15:00SWL551Manual testing272273--14.92--
2013-08-31T13:15:00SWL551Manual testing273274--29.84--
2021-11-29T09:35:26linearManual testing274275--59.69--


ECM factoring results:
No ECM results for M64101139


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-10-15T13:55:00gucsimageproA33958685AFF82__155.5


PRP results:
No PRP results for M64101139


P-1 factor-bounds graph:
B1 = 550000, B2 = 9350000 (P-1 stage 2)
B1 = 550000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-11-29T09:35:26+00:00