is 2 6992753 - 1
has 2105029 decimal digits
takes 1.525 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
Actual2674.249265.6716%----4.249265.6716%
Target2674.249265.6716%450009000000.02902.2402%4.278266.4407%
Difference----45000-900000-0.0290-2.2402%-0.0290-0.7690%

Known prime factors (3 factors, 152.5 bits, 0.00218045% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6992753311474001227211444.8242227120
24 × 5 × 7 × 41 × 97		1999-07-2741973.555e-71.393e-52.638e-5
6992753951822210826571446.4366805776
24 × 3 × 71 × 1997		2008-09-087119971.490e-65.563e-56.430e-5
699275326738300030202481511961.214191185789275
32 × 52 × 13 × 31 × 2108473		2016-04-113121084730.06460.03630.0678

4 Composite Factors:
P-1 results:
No P-1 results for M6992753


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-07-27ANONYMOUSv4_computers??44.824142.03119e-87.3289.76137e-8
1999-07-27ANONYMOUSv4_computers??46.436141.49728e-77.3287.19552e-7
2008-09-08Will EdgingtonManual testing??46.436141.49728e-77.3287.19552e-7
2016-04-11TJAOIManual testing261262*61.214190.0217.2400.098


ECM factoring results:
No ECM results for M6992753


Lucas-Lehmer results:
No L-L results for M6992753


PRP results:
dateuseridcompidcofactorsres64PRP
2017-11-01kkmrkkblmbrbkc4.xlarge
31147400122721
95182221082657
2673830003020248151
8C7396DEE0244A__no
2019-02-21Chang Chia-Tcheexbbbe-lt
31147400122721
95182221082657
2673830003020248151
8C7396DEE0244AC5no


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
TF factor-bounds graph:
262
2
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00