is 2 6941483 - 1
has 2089595 decimal digits
takes 1.514 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
Actual2674.280665.6716%----4.280665.6716%
Target2674.280665.6716%4500072000000.13752.2374%4.418166.4397%
Difference----45000-7200000-0.1375-2.2374%-0.1375-0.7681%

Known prime factors (3 factors, 124.7 bits, 0.00179630% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
694148311245202471030.06781
34
-81812.097e-112.561e-55.212e-5
694148370630006013991342.683508753
7 × 72679
2008-09-307726799.451e-80.00130.0023
694148343202325261427691651.940311189448
23 × 3 × 19 × 23 × 29671
2014-07-1723296714.423e-50.00050.0010

4 Composite Factors:
P-1 results:
No P-1 results for M6941483


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-30markrManual testing??42.683131.01031e-87.3374.89716e-8
2014-07-17TJAOIManual testing??51.940161.01024e-67.3374.89675e-6


ECM factoring results:
No ECM results for M6941483


Lucas-Lehmer results:
No L-L results for M6941483


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-18kkmrkkblmbrbkc4.xlarge
1124520247
7063000601399
4320232526142769
B8178B92C861F2__no
2019-02-02ATHec2-PRPCFDC
1124520247
7063000601399
4320232526142769
B8178B92C861F2B9no


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
TF factor-bounds graph:
2
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-06-05T21:50:05+00:00