is 2 50804057 - 1
has 15293546 decimal digits
takes 93.070 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
Actual2670.584961.1940 %----0.584961.1940 %
Target27337.651464.3836 %340000550000008.81373.7938 %46.465265.7348 %
Difference-6-37.0665-3.1895 %-340000-55000000-8.8137-3.7938 %-45.8803-4.5408 %

Known prime factors (1 factor, 79.3 bits, 0.00015617% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
508040577647499129521076409728012479.3397526464992275200
28 × 52 × 31 × 2311 × 2621 × 6263
2009-03-30262162634,684.20.00750.0142

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-03-30unconnectedtest53452479.3391.8590.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-15ANONYMOUSv4_computers212532.36000e-5
2000-02-09ANONYMOUSv4_computers212544.72000e-5
2000-04-19ANONYMOUSv4_computers212560.000
2001-04-21ANONYMOUSv4_computers212570.000
2002-01-22ANONYMOUSv4_computers212580.001
2003-08-25ANONYMOUSv4_computers212590.001
2003-11-08ANONYMOUSv4_computers212600.002
2007-03-20James Heinrichv4_computers212630.019
2008-09-26DerekManual testing212640.037
2009-01-30tmorrowtoaster2642650.074
2009-02-02tmorrowtoaster2652660.147
2009-02-06tmorrowtoaster2662670.294


ECM factoring results:
No ECM results for M50804057


Lucas-Lehmer results:
No L-L results for M50804057


PRP results:
No PRP results for M50804057


CERT results:
No CERT results for M50804057


P-1 factor-bounds graph:
102
103
104
102
103
104
TF factor-bounds graph:
267
266
265
264
263
260
259
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