is 2 53120923 - 1
has 15990992 decimal digits
takes 101.766 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
Actual2670.559461.1940 %----0.559461.1940 %
Target27336.009264.3836 %3600006000000010.02613.9127 %46.035465.7771 %
Difference-6-35.4499-3.1895 %-360000-60000000-10.0261-3.9127 %-45.4760-4.5831 %

Known prime factors (1 factor, 69.6 bits, 0.00013111% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
531209239241625875660987675912169.6478698668390665
5 × 11 × 127 × 907 × 1373027
2009-01-1090713730274.47140.21020.3881

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-01-10binarydigitsv4_computers2169.6473.1260.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-01-14binarydigitsv4_computers??
69.647
21
1999-12-08ANONYMOUSv4_computers212532.26000e-5
2000-03-01ANONYMOUSv4_computers212544.52000e-5
2000-05-17ANONYMOUSv4_computers212560.000
2001-07-22ANONYMOUSv4_computers212570.000
2002-06-15ANONYMOUSv4_computers212580.001
2004-04-091997rj7v4_computers212600.001
2008-07-21ANONYMOUSManual testing212640.035


ECM factoring results:
No ECM results for M53120923


Lucas-Lehmer results:
No L-L results for M53120923


PRP results:
No PRP results for M53120923


CERT results:
No CERT results for M53120923


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
TF factor-bounds graph:
264
260
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