is 2 10487611 - 1
has 3157086 decimal digits
takes 3.426 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L67B7711269709210double-checked
PRP7024F118C778E4A4PRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27291.187066.6667%10000000516296942701,336.868914.7982%1,428.055971.5994%4.9327%
PrimeNet2640.339462.5000%4500013000000.05373.7716%0.393163.9143%1.4143%
GPU722685.683464.7059%7000017000000.07522.7044%5.758665.6604%0.9545%
Difference+4+85.5036+1.9608%+9930000+51627994270+1,336.7937+12.0938%+1,422.2973+5.9390%+3.9782%

Known prime factors (1 factor, 145.8 bits, 0.00139061% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
104876117995130473495008204377978923650573319192235944145.8423811702433230507979547476981960225889
3 × 7 × 307 × 25903 × 606589 × 1066447 × 1217941 × 28970180143
2022-01-261217941289701801431.750e+10748.171,396.4

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-07-07T00:00:00ANONYMOUSv4_computers145000145000---0.069--0.759%
2012-12-10T18:37:00NesowaOutback1450002875000---0.139--2.202%
2022-01-26T16:43:29Luminescence5950X2100000005162969427044145.8421,3376.8522,67414.798%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-12-08T00:00:00ANONYMOUSv4_computers21264--0.339--
2013-12-19T21:24:00lycornManual testing264265--0.356--
2015-05-05T14:30:00ThaManual testing265266--0.713--
2015-12-11T23:19:12VictordeHollanderManual testing266267--1.425--
2017-09-25T10:54:56-Anonymous-Manual testing267268--2.850--
2017-11-16T16:11:15ramgeisManual testing268269--5.700--
2020-08-13T20:23:16ViliamFManual testing269270--11.40--
2021-08-19T15:59:44SRBaseManual testing270271--22.80--
2021-10-26T15:02:09SRBaseManual testing271272--45.60--


ECM factoring results:
Total ECM effort:0.993 GHz-days
Estimated T-Level:0.385
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.993


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-03-31T00:00:00ANONYMOUSv4_computers67B77112697092103.426
2003-11-16T00:00:00JohnHa0v4_computers67B77112697092103.426


PRP results:
dateuseridcompidcofactorsres64PRP
2022-02-01T18:58:51Poaooffice-CN1
79951304734950082043779789236505733191922359
7024F118C778E4A4no


P-1 factor-bounds graph:
B1 = 10000000, B2 = 51629694270 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
B1 = 145000, B2 = 2875000 (P-1 stage 2)
B1 = 145000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-02-01T18:58:51+00:00