is 2 69577009 - 1
has 20944767 decimal digits
takes 186.022 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L78C21D5828A2F823double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27454.987563.5135%7550007550002.92691.8145%57.914464.1756%
Target27454.987563.5135%45000012800000028.68503.9958%83.672564.9715%
Difference---+305000-127245000-25.7581-2.1813%-25.7581-0.7959%

Known prime factors (1 factor, 78.2 bits, 0.00011246% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
695770093592947075728382947676892478.2502581993051561316
22 × 293 × 512059 × 4302367		2014-03-1151205943023671,233.32.78574.0401

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-03-12NesowaERA755000755000---2.927--1.815%
2016-06-15ANONYMOUSManual testing7550007550002478.2502.927372.05.8541.815%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-10-22Jocelyn Larouchev4_computers21254--3.44919e-5--
2001-01-08Jocelyn Larouchev4_computers21256--0.000--
2003-09-21ANONYMOUSv4_computers21262--0.009--
2016-03-31Mark RoseManual testing262264--0.042--
2010-04-21riccardo ubertiDuallie264265--0.054--
2010-04-26ANONYMOUS265266--0.107--
2010-04-30ANONYMOUS266267--0.215--
2010-05-07ANONYMOUS267268--0.430--
2010-05-16unconnectedcan-01268269--0.859--
2012-04-25afroehig287269270--1.718--
2012-11-26igManual testing270271--3.437--
2014-03-05garoManual testing271272--6.874--
2014-03-09NesowaManual testing272273--13.75--
2014-03-09NesowaManual testing273274--27.50--


ECM factoring results:
No ECM results for M69577009


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2015-03-02gkn2378gkngkn2378gkn78C21D5828A2F823186.0


PRP results:
No PRP results for M69577009


P-1 factor-bounds graph:
B1 = 755000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
264
262
256
254
this exponent TF target: 74
TF double-checked to: 67.9
250
260
270
280
Last modified: 2023-06-05T21:50:05+00:00