is 2 51330443 - 1
has 15452004 decimal digits
takes 94.035 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
Actual2681.161261.7647 %----1.161261.7647 %
Target27337.265364.3836 %340000550000008.81373.7989 %46.079065.7366 %
Difference-5-36.1041-2.6189 %-340000-55000000-8.8137-3.7989 %-44.9178-3.9719 %

Known prime factors (1 factor, 73.2 bits, 0.00014269% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
51330443111655354951252398448092373.241108761339690028
22 × 32 × 429899 × 7027577
2009-11-09429899702757749.2692.09682.3241

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-11-09Sturle Sundepapadopoulos.ifi2373.2415.0820.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-15ANONYMOUSv4_computers212532.34000e-5
2000-02-16ANONYMOUSv4_computers212544.68000e-5
2000-04-05ANONYMOUSv4_computers212560.000
2001-05-06ANONYMOUSv4_computers212570.000
2002-02-10ANONYMOUSv4_computers212580.001
2003-10-14apocalypsev4_computers212600.001
2022-04-05LordJuliusManual testing260263
2008-11-28cnaTb_xo4yManual testing2632640.038
2008-11-29David Barleyken22642660.218
2008-12-01David Barleyken22662670.291
2009-04-16Net_ForceKathy_PC2672680.582


ECM factoring results:
No ECM results for M51330443


Lucas-Lehmer results:
No L-L results for M51330443


PRP results:
No PRP results for M51330443


CERT results:
No CERT results for M51330443


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
268
267
266
264
263
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