is 2 69599351 - 1
has 20951493 decimal digits
takes 186.082 GHz-days to do one PRP test
Last-known PrimeNet details:
Assigned as ll_dc on 2023-03-06, 99.0% done, ETC 2023-05-30
1 primality tests remaining
ResidueStatus
L-L149DFF34824F62__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual275109.942264.0000%680000151300005.68823.7842%115.630565.3623%
Target27454.969863.5135%450000160000005.02893.9960%59.998864.9715%
Difference+1+54.9724+0.4865%+230000-870000+0.6593-0.2118%+55.6317+0.3908%

Known prime factors:
No known factors for M69599351

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-03-30TheJudgerManual testing68000015130000---5.688--3.784%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-10-22Jocelyn Larouchev4_computers21254--3.44809e-5--
2001-05-13Jocelyn Larouchev4_computers21256--0.000--
2003-09-29ANONYMOUSv4_computers21262--0.009--
2016-03-31Mark RoseManual testing262264--0.042--
2010-02-20Sturle Sundegoose.ifi264265--0.054--
2010-02-27taennytaenny2265266--0.107--
2010-03-03Thomas SprengerElara266267--0.215--
2010-03-06korvadualcore1267268--0.429--
2010-03-07ANONYMOUSjedi268269--0.859--
2013-05-06ANONYMOUS269270--1.718--
2014-02-03garoManual testing270271--3.436--
2014-02-03garoManual testing271272--6.872--
2014-03-05Jerry HallettManual testing272273--13.74--
2014-06-20brilongManual testing273274--27.49--
2019-01-21Sid & AndyManual testing274275--54.97--


ECM factoring results:
No ECM results for M69599351


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2014-12-19curtiscgrn209--09l149DFF34824F62__186.1


PRP results:
No PRP results for M69599351


P-1 factor-bounds graph:
B1 = 680000, B2 = 15130000 (P-1 stage 2)
B1 = 680000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
266
265
264
262
256
254
this exponent TF target: 74
TF double-checked to: 67.8
250
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270
280
Last modified: 2023-05-29T15:56:04+00:00