is 2 6994279 - 1
has 2105488 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-LE910F2D4733FEA4Bdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2674.248365.6716%8500015300000.05182.8990%4.300166.6668%0.9952%
PrimeNet2630.228263.4921%300008000000.02273.3131%0.250964.7016%1.2096%
GPU722674.248365.6716%450009000000.02902.2402%4.277366.4407%0.7690%
Difference---+40000+630000+0.0228+0.6588%+0.0228+0.2261%+0.2261%

Known prime factors (1 factor, 64.1 bits, 0.00091710% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6994279203862947639313615192064.1441457354987121
3 × 11 × 19 × 2324330123
2012-09-141923243301230.726440.04074.783

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-02-17T00:00:00ANONYMOUSv4_computers35000428750---0.018--1.734%
2012-08-25T23:59:00NesowaEPC850001530000---0.052--2.899%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-07-05T00:00:00ANONYMOUSv4_computers21261--0.044--
1998-07-11T00:00:00ANONYMOUSv4_computers21262--0.088--
2004-04-09T00:00:00Sturle Sundev4_computers21263--0.228--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CurvesCompleteFacMiss

New Calculation Method

Total ECM effort:0.000 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-26T00:00:00ANONYMOUSv4_computersD09EEB4F57709B__1.525
1999-06-15T00:00:00ANONYMOUSv4_computersE910F2D4733FEA4B1.525
2002-03-10T00:00:00ANONYMOUSv4_computersE910F2D4733FEA4B1.525


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-26T19:01:14NetaniasWin10
20386294763931361519
049506C2174DCF__no
2019-02-21T02:04:35kkmrkkblmbrbkc5.large
20386294763931361519
049506C2174DCF26no


P-1 factor-bounds graph:
B1 = 85000, B2 = 1530000 (P-1 stage 2)
B1 = 85000 (P-1 stage 1)
B1 = 35000, B2 = 428750 (P-1 stage 2)
B1 = 35000 (P-1 stage 1)
100
101
102
103
104
105
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
263
262
261
250
260
270
280
290
2100
Last modified: 2019-02-21T02:04:35+00:00