is 2 69013121 - 1
has 20775020 decimal digits
takes 184.514 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
Actual2716.927461.9718 %----6.927461.9718 %
Target27455.436863.5135 %4500007500000017.49063.9429 %72.927464.9522 %
Difference-3-48.5094-1.5417 %-450000-75000000-17.4906-3.9429 %-66.0001-2.9803 %

Known prime factors (1 factor, 90.6 bits, 0.00013133% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6901312119178800967569307050771526572890.63213895039587884532168
23 × 72 × 132 × 59 × 101 × 3792 × 245039
2013-10-281436412450394,976,4840.57831.1333

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2013-10-28timc995c6100a32890.6322.9460.000%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-09-23Jossv4_computers212560.000
2001-05-13Jossv4_computers212580.001
2003-11-28ANONYMOUSv4_computers212610.002
2003-12-23ANONYMOUSv4_computers212620.004
2004-07-13ANONYMOUSv4_computers212630.014
2010-02-13unconnectedE6400-12642650.054
2010-02-15Sturle Sundevancraft.ifi2652660.108
2010-06-22chris_2epinguin2662670.217
2010-06-26korvalenovoLAP12672680.433
2022-05-12LordJuliusManual testing21269
2010-07-02Cereal Business2682690.866
2012-03-22tmorrowpaperclip2692701.732
2012-09-27Per Jessenrainbow2702713.465


ECM factoring results:
No ECM results for M69013121


Lucas-Lehmer results:
No L-L results for M69013121


PRP results:
No PRP results for M69013121


CERT results:
No CERT results for M69013121


P-1 factor-bounds graph:
104
105
106
104
105
106
TF factor-bounds graph:
271
270
269
268
267
266
265
263
262
261
258
256
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00