is 2 80672903 - 1
has 24284964 decimal digits
takes 251.739 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-LA72E95263D2209__
needs double-check
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27594.851064.0000%710000143775006.58183.8339%101.432965.3802%1.3802%
PrimeNet2715.926161.9718%340000160000005.39895.2522%11.325063.9691%1.9973%
GPU7227594.851064.0000%500000170000006.32993.7867%101.180965.3632%1.3632%
Difference---+210000-2622500+0.2519+0.0472%+0.2519+0.0170%+0.0170%

Known prime factors:
No known factors for M80672903

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-02-15T10:59:30apocalypsecapn-slick710000143775006---6.582--3.834%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-12-01T13:20:00Architects Cubedm1_36264265--0.046--
2011-01-27T11:24:00RhyledRhyled265266--0.093--
2011-01-28T09:26:00ANONYMOUS266267--0.185--
2011-01-29T21:10:00firejugglerManual testing267268--0.371--
2011-01-30T19:06:00firejugglerManual testing268269--0.741--
2011-01-31T00:38:00firejugglerManual testing269270--1.482--
2013-11-04T09:15:00cnaTb_xo4y801270271--2.964--
2016-08-25T09:55:05Judge HaleManual testing271272--5.928--
2016-08-25T09:55:05Judge HaleManual testing272273--11.86--
2016-08-25T10:55:05Judge HaleManual testing273274--23.71--
2016-08-25T11:55:05Judge HaleManual testing274275--47.43--


ECM factoring results:
No ECM results for M80672903


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2018-04-07T15:59:29andrea.biancalanainfo0A72E95263D2209__251.7


PRP results:
No PRP results for M80672903


P-1 factor-bounds graph:
B1 = 710000, B2 = 14377500 (P-1 stage 2)
B1 = 710000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2018-04-07T15:59:29+00:00