is 2 24427577 - 1
has 7353434 decimal digits
takes 19.813 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LB1411A7BD65BDE14double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual275313.248866.6667%28500060562500.70502.3894%313.953867.4631%0.7965%
PrimeNet2660.604662.1212%11000040000000.37864.9621%0.983264.0008%1.8796%
GPU722709.782064.2857%17000050000000.50943.6160%10.291465.5772%1.2914%
Difference+5+303.4668+2.3810%+115000+1056250+0.1956-1.2266%+303.6623+1.8860%+1.8860%

Known prime factors:
No known factors for M24427577

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-05-25T00:00:00ANONYMOUSv4_computers2850006056250---0.705--2.389%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-09-16T00:00:00Net_Forcev4_computers21256--0.000--
2001-12-01T00:00:00Mattv4_computers21258--0.002--
2003-08-08T00:00:00Net_Forcev4_computers21260--0.006--
2004-01-27T00:00:00ANONYMOUSv4_computers21267--1.216--
2016-05-24T15:08:13VictordeHollanderManual testing267268--1.224--
2018-02-12T00:46:20VictordeHollanderManual testing268269--2.447--
2018-09-18T10:53:31ramgeisManual testing269270--4.895--
2021-08-05T15:19:48SRBaseManual testing270271--9.79--
2021-08-30T16:08:09TheJudgerManual testing271272--19.58--
2021-08-30T16:08:10TheJudgerManual testing272273--39.16--
2021-10-01T20:10:02TheJudgerManual testing273274--78.31--
2021-10-22T16:42:33TheJudgerManual testing274275--156.6--


ECM factoring results:
No ECM results for M24427577


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-06-04T00:00:00ANONYMOUSv4_computersB1411A7BD65BDE1419.81
2010-09-20T22:27:00Baquarav4_computersB1411A7BD65BDE1419.81
2010-10-02T00:00:00Baquarav4_computersB1411A7BD65BDE1419.81
2011-02-05T00:00:00Baquarav4_computersB1411A7BD65BDE1419.81


PRP results:
No PRP results for M24427577


P-1 factor-bounds graph:
B1 = 285000, B2 = 6056250 (P-1 stage 2)
B1 = 285000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
275
274
273
272
271
270
269
268
267
260
258
256
250
260
270
280
290
2100
Last modified: 2021-10-22T16:42:33+00:00