is 2 84928637 - 1
has 25566068 decimal digits
takes 273.541 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L35D72386EF5B9E__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276180.198364.4737%7750007750003.61941.5041%183.817765.0080%0.5344%
PrimeNet2715.629261.9718%360000170000005.91535.3806%11.544464.0180%2.0461%
GPU7227590.098164.0000%550000190000007.26313.9437%97.361265.4197%1.4197%
Difference+1+90.1002+0.4737%+225000-18225000-3.6437-2.4396%+86.4565-0.4117%-0.4117%

Known prime factors:
No known factors for M84928637

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-12-09T09:35:15YxinityYGS3775000775000---3.619--1.504%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-22T04:20:00Architects Cubedm1_32264265--0.044--
2012-08-10T06:13:00Carsten KossendeyManual testing265266--0.088--
2013-06-14T14:44:00willmoreManual testing266267--0.176--
2013-06-15T17:24:00PascalBieriManual testing267268--0.352--
2013-06-20T10:29:00ArtfulDodgerDodger-1268269--0.704--
2013-07-01T14:06:00ArtfulDodgerDodger-1269270--1.408--
2014-03-03T20:28:00arnaudsrv-620270271--2.816--
2017-03-11T18:48:50monstManual testing271272--5.631--
2017-03-19T21:06:11Random GPUsManual testing271272--5.631--
2017-03-11T18:48:50monstManual testing272273--11.26--
2017-03-19T21:06:14Random GPUsManual testing272273--11.26--
2017-03-11T18:48:50monstManual testing273274--22.53--
2017-03-19T21:06:17Random GPUsManual testing273274--22.53--
2017-03-11T18:48:50monstManual testing274275--45.05--
2017-05-18T03:50:06Mark RoseManual testing275276--90.10--


ECM factoring results:
No ECM results for M84928637


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2019-02-24T22:37:16-Anonymous-35D72386EF5B9E__273.5


PRP results:
No PRP results for M84928637


P-1 factor-bounds graph:
B1 = 775000 (P-1 stage 1)
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104
105
106
TF factor-bounds graph:
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Last modified: 2019-02-24T22:37:16+00:00