is 2 24832783 - 1
has 7475413 decimal digits
takes 20.142 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L72EC2DD7B4D3D864double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual274154.065166.2162%29500074487500.80532.8088%154.870567.1651%0.9489%
PrimeNet2660.594762.1212%11000040000000.37864.9730%0.973464.0049%1.8837%
GPU722709.622464.2857%18000050000000.52063.6569%10.142965.5918%1.3060%
Difference+4+144.4427+1.9305%+115000+2448750+0.2848-0.8482%+144.7275+1.5734%+1.5734%

Known prime factors:
No known factors for M24832783

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-07-02T00:00:00ANONYMOUSv4_computers2950007448750---0.805--2.809%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-06-09T00:00:00Mattv4_computers21258--0.002--
2003-08-31T00:00:00Net_Forcev4_computers21260--0.006--
2004-08-04T00:00:00tscv4_computers21267--1.197--
2016-05-24T15:10:40VictordeHollanderManual testing267268--1.204--
2018-03-05T17:24:53VictordeHollanderManual testing268269--2.407--
2018-09-05T21:59:03ramgeisManual testing269270--4.815--
2021-08-05T15:18:56SRBaseManual testing270271--9.63--
2021-08-30T15:54:05TheJudgerManual testing271272--19.26--
2021-08-30T15:54:05TheJudgerManual testing272273--38.52--
2021-10-01T20:05:22TheJudgerManual testing273274--77.04--


ECM factoring results:
No ECM results for M24832783


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-07-26T00:00:00ANONYMOUSv4_computers72EC2DD7B4D3D86420.14
2011-06-10T17:23:00Luc MartineauSNC-272EC2DD7B4D3D86420.14


PRP results:
No PRP results for M24832783


P-1 factor-bounds graph:
B1 = 295000, B2 = 7448750 (P-1 stage 2)
B1 = 295000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-10-01T20:05:22+00:00