is 2 61041007 - 1
has 18375175 decimal digits
takes 143.390 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LAACEC351AA23538Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27462.677064.8649%575000110687503.90593.7742%66.582966.1909%1.3261%
PrimeNet2703.914662.8571%260000120000003.06435.1326%6.978964.7635%1.9064%
GPU7227462.677064.8649%400000130000003.70073.7144%66.377766.1699%1.3051%
Difference---+175000-1931250+0.2052+0.0598%+0.2052+0.0210%+0.0210%

Known prime factors:
No known factors for M61041007

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-02-06T23:17:00NesowaBSP257500011068750---3.906--3.774%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-06-06T00:00:00ANONYMOUSv4_computers21259--0.001--
2003-10-08T00:00:00ANONYMOUSv4_computers21260--0.003--
2004-04-09T00:00:00ANONYMOUSv4_computers21262--0.010--
2016-02-23T17:06:38Mark RoseManual testing262263--0.016--
2009-02-25T20:09:00jpinedadck185d1263264--0.032--
2009-04-02T17:49:00ruedigereckhardsempron264265--0.061--
2009-04-03T17:17:00ruedigereckhardsempron265266--0.122--
2009-04-04T19:20:00ruedigereckhardsempron266267--0.245--
2009-04-05T20:15:00Sturle Sundegoose.ifi267268--0.490--
2009-07-11T17:52:00flounderspc268269--0.979--
2011-11-01T04:54:00Roy OswaldManual testing269270--1.959--
2013-01-29T01:01:00ktonyManual testing270273--27.42--
2013-06-24T16:14:00BdotManual testing273274--31.34--


ECM factoring results:
No ECM results for M61041007


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2014-04-27T05:12:00Arthur Rosenthal3459633g_ml2AACEC351AA23538B143.4
2022-02-28T06:34:25unconnectednewgen01AACEC351AA23538B143.4


PRP results:
No PRP results for M61041007


P-1 factor-bounds graph:
B1 = 575000, B2 = 11068750 (P-1 stage 2)
B1 = 575000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-02-28T06:34:25+00:00