is 2 13466917 - 1
has 4053946 decimal digits
takes 5.975 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
Verified Mersenne Prime

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.206464.1791 %1250005937500.09682.6352 %2.303365.1231 %
Target2698.865265.2174 %90000110000000.44032.7814 %9.305566.1848 %
Difference-2-6.6588-1.0383 %+35000-10406250-0.3435-0.1461 %-7.0022-1.0618 %

Known prime factors:
None — M13466917 is prime!

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-10-06ANONYMOUSv4_computers125000593750--0.0972.077%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-06-11kutensv4_computers212650.277
2002-02-03ANONYMOUSv4_computers212650.277
2002-03-10ANONYMOUSv4_computers212650.277
2002-03-16ANONYMOUSv4_computers212650.277
2002-07-27ANONYMOUSv4_computers212650.277
2002-09-07ANONYMOUSv4_computers212650.277
2002-09-29ANONYMOUSv4_computers212650.277
2002-11-24Criswellv4_computers212650.277
2003-01-09ANONYMOUSv4_computers212650.277
2003-01-16ANONYMOUSv4_computers212650.277


ECM factoring results:
No ECM results for M13466917


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-02-16ANONYMOUSv4_computersA82205E3861ECB__5.975


PRP results:
No PRP results for M13466917


CERT results:
No CERT results for M13466917


P-1 factor-bounds graph:
B1 = 125000, B2 = 593750 (P-1 stage 2)
B1 = 125000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
265
this exponent TF target: 69
TF double-checked to: 67
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00