is 2 6997273 - 1
has 2106390 decimal digits
takes 1.526 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
Actual2674.246565.6716%----4.246565.6716%
Target2674.246565.6716%450009000000.02902.2404%4.275566.4407%
Difference----45000-900000-0.0290-2.2404%-0.0290-0.7691%

Known prime factors (3 factors, 94.1 bits, 0.00134506% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6997273671738209929.32348
24 × 3		-16161.033e-115.059e-61.030e-5
699727332327401271031.590231
3 × 7 × 11		2008-09-087114.293e-112.282e-64.504e-6
699727398941440231033.204707
7 × 101		2008-09-0871011.886e-103.833e-64.504e-6

4 Composite Factors:
P-1 results:
No P-1 results for M6997273


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08Will EdgingtonManual testing??31.590102.04425e-127.3279.81675e-12
2008-09-08Will EdgingtonManual testing??33.204102.50266e-117.3271.20181e-10


ECM factoring results:
No ECM results for M6997273


Lucas-Lehmer results:
No L-L results for M6997273


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-30Oliver KruseGTX-6
671738209
3232740127
9894144023
02D31CA81B0452__no
2019-02-21kkmrkkblmbrbkc5.large
671738209
3232740127
9894144023
02D31CA81B045277no


P-1 factor-bounds graph:
100
101
102
100
101
102
103
TF factor-bounds graph:
2
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00