is 2 60465287 - 1
has 18201866 decimal digits
takes 134.325 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L0D7532478C784005double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27463.273864.8649%570000108300003.63673.7489%66.910566.1820%1.3172%
PrimeNet2691.974562.3188%260000120000002.89795.6562%4.872464.4502%2.1313%
GPU7227331.635464.3836%400000140000003.67534.1570%35.310765.8641%1.4806%
Difference+1+31.6383+0.4813%+170000-3170000-0.0386-0.4082%+31.5998+0.3179%+0.3179%

Known prime factors:
No known factors for M60465287

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2013-03-26T05:38:00krackercenter57000010830000---3.637--3.749%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-08-08T00:00:00ANONYMOUSv4_computers21260--0.003--
2016-02-23T17:06:21Mark RoseManual testing260263--0.024--
2009-05-27T14:20:00markrrmst263264--0.032--
2009-09-08T04:17:00jhalpin260264265--0.062--
2009-09-08T12:18:00lycornKangoo265266--0.124--
2009-09-09T23:29:00lycornKangoo266267--0.247--
2009-11-28T08:25:00ANONYMOUS267268--0.494--
2009-12-03T09:00:00Donna NobleQ6600v2268269--0.989--
2011-07-12T18:54:00Tom DuellManual testing269270--1.977--
2012-09-16T17:41:00peppemelfi270271--3.955--
2012-12-20T13:45:00AntonioKManual testing271273--23.73--
2016-03-03T21:05:19AirSquirrelsManual testing273274--31.64--


ECM factoring results:
No ECM results for M60465287


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2013-12-21T00:33:00curtiscwcm201--04l0D7532478C7840__134.3
2021-12-31T06:30:34Mike McFaddenOther0D7532478C784005134.3


PRP results:
No PRP results for M60465287


P-1 factor-bounds graph:
B1 = 570000, B2 = 10830000 (P-1 stage 2)
B1 = 570000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-12-31T06:30:34+00:00