is 2 55295941 - 1
has 16645737 decimal digits
takes 117.197 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
Actual2692.159162.3188 %----2.159162.3188 %
Target27334.592964.3836 %3600006000000011.09223.9327 %45.685165.7843 %
Difference-4-32.4338-2.0647 %-360000-60000000-11.0922-3.9327 %-43.5260-3.4654 %

Known prime factors (1 factor, 74.4 bits, 0.00013452% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
55295941246310794416981404234092374.383222720501688344
23 × 32 × 11 × 103 × 3583 × 761993
2011-08-25358376199392.9120.13800.2383

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-08-25Sid & AndyWoody2374.3834.7180.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-15ANONYMOUSv4_computers212532.17000e-5
2000-03-01ANONYMOUSv4_computers212544.34000e-5
2000-05-31ANONYMOUSv4_computers212560.000
2001-09-16ANONYMOUSv4_computers212570.000
2002-07-14ANONYMOUSv4_computers212580.001
2008-11-031997rj7Manual testing212640.034
2009-01-02oodaira052642650.068
2009-01-03oodaira052652660.135
2009-03-11Myxozoamyxozoa2662670.270
2009-05-23Gymnasium_Raublingb22672680.541
2011-04-08The Magic ForestDreamRez12682691.081


ECM factoring results:
No ECM results for M55295941


Lucas-Lehmer results:
No L-L results for M55295941


PRP results:
No PRP results for M55295941


CERT results:
No CERT results for M55295941


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
269
268
267
266
265
264
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00