is 2 24695863 - 1
has 7434196 decimal digits
takes 20.031 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L452E5A73691E62DAdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual274154.919366.2162%602000366800003.01984.2635%157.939167.6566%1.4404%
PrimeNet2660.598062.1212%11000040000000.37864.9694%0.976664.0035%1.8823%
GPU722709.675764.2857%17000050000000.50943.6214%10.185265.5791%1.2934%
Difference+4+145.2436+1.9305%+432000+31680000+2.5104+0.6420%+147.7539+2.0775%+2.0775%

Known prime factors:
No known factors for M24695863

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2005-03-20T00:00:00DonRoberv4_computers370000370000---0.435--1.118%
2021-04-14T21:46:53Architects CubedGCE_260200036680000---3.020--4.263%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-09-16T00:00:00Net_Forcev4_computers21256--0.000--
2001-12-22T00:00:00Mattv4_computers21258--0.002--
2003-08-31T00:00:00Net_Forcev4_computers21260--0.006--
2004-05-25T00:00:00ANONYMOUSv4_computers21267--1.203--
2016-05-24T15:09:47VictordeHollanderManual testing267268--1.210--
2018-02-24T20:16:19VictordeHollanderManual testing268269--2.421--
2018-03-15T05:08:21YxinityManual testing269270--4.841--
2021-08-05T15:57:21SRBaseManual testing270271--9.68--
2021-08-30T16:20:01TheJudgerManual testing271272--19.37--
2021-08-30T16:20:01TheJudgerManual testing272273--38.73--
2021-09-13T17:03:15TheJudgerManual testing273274--77.46--


ECM factoring results:
No ECM results for M24695863


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2005-04-11T00:00:00DonRoberv4_computers452E5A73691E62DA20.03
2010-10-16T17:20:00lindedLKAW904-Sci316452E5A73691E62DA20.03


PRP results:
No PRP results for M24695863


P-1 factor-bounds graph:
B1 = 602000, B2 = 36680000 (P-1 stage 2)
B1 = 602000 (P-1 stage 1)
B1 = 370000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-09-13T17:03:15+00:00