is 2 270000023 - 1
has 81278106 decimal digits
takes 3,225.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual280906.913163.7500 %2235000223500038.70901.7665 %945.622164.3903 %
Target280906.913163.7500 %1600000325000000332.87494.0671 %1,239.788165.2243 %
Difference---+635000-322765000-294.1660-2.3007 %-294.1660-0.8340 %

Known prime factors (1 factor, 83.7 bits, 0.00003099% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
270000023155143130838969064928514012683.68228730206967235900
22 × 3 × 52 × 7 × 53 × 163 × 919 × 1723219
2018-04-3091917232197,255.31.64113.0370

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-04-30KrieselManual testing22350002235000212683.68240.511.766%


Trial Factoring results:
575859606162636465666768697071727374757677787980
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-06-23rudimeierdickie2672680.111
2009-06-30rudimeierbart2682690.221
2009-07-16rudimeierhomer2692700.443
2009-08-22rudimeierquant2702710.886
2009-10-25rudimeierclyde2712721.771
2010-01-30rudimeierclyde2722733.543
2010-04-11rudimeiershakti2732747.085
2010-05-13rudimeiertreml27427514.17
2010-07-26rudimeierskylla27527628.34
2018-04-08KrieselManual testing27627756.68
2018-04-08KrieselManual testing277278113.4
2018-04-08KrieselManual testing278279226.7
2018-04-08KrieselManual testing279280453.5


ECM factoring results:
No ECM results for M270000023


Lucas-Lehmer results:
No L-L results for M270000023


PRP results:
No PRP results for M270000023


CERT results:
No CERT results for M270000023


P-1 factor-bounds graph:
B1 = 2235000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 80
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00