is 2 24850247 - 1
has 7480670 decimal digits
takes 20.156 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L33D7BDC4A8198CCDdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275307.920866.6667%3700003700000.43520.9874%308.356066.9958%0.3291%
PrimeNet2660.594362.1212%11000040000000.37864.9735%0.972964.0051%1.8839%
GPU722709.615664.2857%18000050000000.52063.6573%10.136265.5919%1.3062%
Difference+5+298.3052+2.3810%+190000-4630000-0.0854-2.6699%+298.2198+1.4039%+1.4039%

Known prime factors:
No known factors for M24850247

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-07-26T00:00:00wbrooksv4_computers370000370000---0.435--0.987%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-08-18T00:00:00Mattv4_computers21258--0.002--
2003-08-31T00:00:00Net_Forcev4_computers21260--0.006--
2004-03-26T00:00:00PrimeCruncherv4_computers21267--1.196--
2016-06-03T12:22:29VictordeHollanderManual testing267268--1.203--
2018-03-05T17:25:00VictordeHollanderManual testing268269--2.406--
2018-08-30T22:16:18ramgeisManual testing269270--4.811--
2021-08-06T14:41:23SRBaseManual testing270271--9.62--
2021-08-30T16:20:59TheJudgerManual testing271272--19.25--
2021-08-30T16:20:59TheJudgerManual testing272273--38.49--
2021-10-01T19:39:44TheJudgerManual testing273274--76.98--
2021-10-17T21:11:34TheJudgerManual testing274275--154.0--


ECM factoring results:
No ECM results for M24850247


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-08-06T00:00:00wbrooksv4_computers33D7BDC4A8198CCD20.16
2011-05-19T09:50:00bigaldeprn6051a33D7BDC4A8198CCD20.16


PRP results:
No PRP results for M24850247


P-1 factor-bounds graph:
B1 = 370000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
260
258
250
260
270
280
290
2100
Last modified: 2021-10-17T21:11:34+00:00