is 2 83218433 - 1
has 25051245 decimal digits
takes 259.682 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual276183.901564.4737%665000121362505.83683.3445%189.738365.6619%1.1882%
PrimeNet2715.744961.9718%360000170000005.73105.3674%11.475864.0130%2.0411%
GPU7227591.949764.0000%550000180000006.79033.8936%98.740065.4017%1.4017%
Difference+1+91.9518+0.4737%+115000-5863750-0.9535-0.5491%+90.9983+0.2602%+0.2602%

Known prime factors (1 factor, 103.2 bits, 0.00012402% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
832184331173133277566570120343491513364932103.21070485181904745197517928
23 × 72 × 112 × 13 × 115901 × 504479 × 1955027
2017-10-0650447919550272.108e+92.64024.6455

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-10-06T04:29:04Jwb52zClay6650001213625032103.2105.837519.411.673.344%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-19T12:30:00Architects Cubedm1_13264265--0.045--
2012-09-12T06:09:00Carsten KossendeyManual testing265266--0.090--
2013-06-29T01:24:00Norman LeyManual testing266267--0.180--
2013-07-17T20:31:00ebravickr.cf267268--0.359--
2013-11-17T02:56:00andorra5268269--0.718--
2013-11-21T23:12:00symalladold_laptop269270--1.437--
2013-12-09T21:16:00RMAC9.5HP-Lisa-a1632x270271--2.873--
2016-12-25T00:55:08ANONYMOUSManual testing271272--5.747--
2016-12-25T00:55:08ANONYMOUSManual testing272273--11.49--
2016-12-25T00:55:08ANONYMOUSManual testing273274--22.99--
2016-12-25T00:55:08ANONYMOUSManual testing274275--45.98--
2017-02-12T20:50:37TheJudgerManual testing275276--91.95--


ECM factoring results:
No ECM results for M83218433


Lucas-Lehmer results:
No L-L results for M83218433


PRP results:
No PRP results for M83218433


P-1 factor-bounds graph:
B1 = 665000, B2 = 12136250 (P-1 stage 2)
B1 = 665000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2017-10-06T04:29:04+00:00