is 2 24517309 - 1
has 7380446 decimal digits
takes 19.886 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LE39590168E712E64double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27378.020265.7534%24000018000000.38222.1511%78.402466.4901%0.7367%
PrimeNet2660.602462.1212%11000040000000.37864.9645%0.981064.0017%1.8805%
GPU722709.746264.2857%17000050000000.50943.6179%10.255665.5778%1.2921%
Difference+3+68.2740+1.4677%+70000-3200000-0.1272-1.4667%+68.1468+0.9123%+0.9123%

Known prime factors:
No known factors for M24517309

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-05-25T00:00:00ANONYMOUSv4_computers2400001800000---0.382--2.151%


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--
2004-02-07T00:00:00ANONYMOUSv4_computers21267--1.212--
2016-05-24T15:08:46VictordeHollanderManual testing267268--1.219--
2018-02-14T22:29:56VictordeHollanderManual testing268269--2.438--
2018-09-18T10:53:27ramgeisManual testing269270--4.877--
2021-08-05T15:26:11SRBaseManual testing270271--9.75--
2021-08-30T16:27:10TheJudgerManual testing271272--19.51--
2021-08-30T16:27:10TheJudgerManual testing272273--39.01--


ECM factoring results:
No ECM results for M24517309


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-06-21T00:00:00ANONYMOUSv4_computersE39590168E712E6419.89
2010-07-17T19:27:00Dry Creek PhotoDCP-G2E39590168E712E6419.89


PRP results:
No PRP results for M24517309


P-1 factor-bounds graph:
B1 = 240000, B2 = 1800000 (P-1 stage 2)
B1 = 240000 (P-1 stage 1)
104
105
106
104
105
106
107
TF factor-bounds graph:
273
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267
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2100
Last modified: 2021-08-30T16:27:10+00:00