is 2 227000009 - 1
has 68333812 decimal digits
takes 2,131.278 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
Actual27667.418563.1579 %1935000193500026.34292.4783 %93.761364.0709 %
Target279539.353264.5570 %1400000275000000221.99464.1687 %761.347966.0345 %
Difference-3-471.9348-1.3991 %+535000-273065000-195.6518-1.6904 %-667.5865-1.9635 %

Known prime factors (1 factor, 76.5 bits, 0.00003372% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2270000091098726208205137756254492476.540242010168423636
22 × 3 × 541 × 50707 × 735169
2019-09-245070773516967.4181.19801.4049

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-09-24KrieselManual testing19350001935000212476.54027.751.813%


Trial Factoring results:
5758596061626364656667686970717273747576777879
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-06-22rudimeierbonnie2672680.132
2009-07-02rudimeierdickie2682690.263
2009-07-18rudimeierbart2692700.527
2009-08-31rudimeierhomer2702711.053
2009-11-02rudimeierdickie2712722.107
2010-01-19rudimeierbonnie2722734.214
2010-04-28rudimeierurvasi2732748.427
2019-09-23KrieselManual testing27427516.85
2019-09-23KrieselManual testing27527633.71


ECM factoring results:
No ECM results for M227000009


Lucas-Lehmer results:
No L-L results for M227000009


PRP results:
No PRP results for M227000009


CERT results:
No CERT results for M227000009


P-1 factor-bounds graph:
B1 = 1935000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
this exponent TF target: 79
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00