is 2 52916449 - 1
has 15929439 decimal digits
takes 101.374 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
Actual27218.072563.8889 %----18.072563.8889 %
Target27336.148464.3836 %3600006000000010.02613.9108 %46.174565.7765 %
Difference-1-18.0759-0.4947 %-360000-60000000-10.0261-3.9108 %-28.1020-1.8876 %

Known prime factors (1 factor, 73.0 bits, 0.00013790% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
5291644992475638093295131417112272.97087378915101895
35 × 5 × 113 × 173 × 3678797
2012-05-19243367879735.9720.55741.0399

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-05-19Kevin JagetSkippy2272.9702.9990.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-01ANONYMOUSv4_computers212532.27000e-5
2000-02-23ANONYMOUSv4_computers212544.54000e-5
2000-05-10ANONYMOUSv4_computers212560.000
2001-07-17ANONYMOUSv4_computers212570.000
2002-06-02ANONYMOUSv4_computers212580.001
2004-03-261997rj7v4_computers212600.001
2008-09-06ANONYMOUSv4_computers212630.019
2008-11-19DerekManual testing212640.036
2009-05-05unconnectedgreece-E84002642650.071
2009-05-16Will Edgingtonganymede2652660.141
2009-05-28Will Edgingtonganymede2662670.282
2009-06-11Will Edgingtonganymede2672680.565
2010-04-01unconnectedcan-022682691.130
2011-11-24Aaron HavilandManual testing2692702.259
2011-12-14XyzzyManual testing27027213.56


ECM factoring results:
No ECM results for M52916449


Lucas-Lehmer results:
No L-L results for M52916449


PRP results:
No PRP results for M52916449


CERT results:
No CERT results for M52916449


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
TF factor-bounds graph:
272
270
269
268
267
266
265
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