is 2 1692959 - 1
has 509632 decimal digits
takes 0.080 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L09DC02B7C4CAAD2Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26717.551568.6567%500000150000000.08805.0212%17.639570.2305%1.5738%
PrimeNet2570.011363.1579%80001300000.00102.7291%0.012364.1634%1.0055%
GPU722610.181465.5738%70001000000.00081.3001%0.182366.0214%0.4476%
Difference+6+17.3700+3.0829%+493000+14900000+0.0872+3.7211%+17.4572+4.2092%+4.2092%

Known prime factors (1 factor, 75.0 bits, 0.00442874% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1692959371759668177795035834492374.97710979582735842836
22 × 3 × 59 × 131 × 118380803207
2009-06-141311183808032072,805.8440.13822.04

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T19:18:49alpertronManual testing5000001500000012---0.088--5.021%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2003-03-07T00:00:00ANONYMOUSv4_computers21258--0.023--
2003-03-16T00:00:00ANONYMOUSv4_computers21258--0.023--


ECM factoring results:

Old Calculation Method

Total ECM effort:15.685 GHz-days
Estimated T-Level:24.714
DigitsB1CurvesCompleteFacMiss
2011000264 / 1002.6407.042%
2550000264 / 2800.94338.886%

New Calculation Method

Total ECM effort:15.685 GHz-days
Estimated T-Level:24.714
DigitsB1CompleteFacMiss
201100010.1540.004%
25500000.94039.082%
302500000.05994.246%
3510000000.00399.723%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50000500000026415.69


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-11-21T00:00:00Morgan Savagev4_computers09DC02B7C4CAAD2E0.080


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-03T02:26:32Oliver KruseGTX-3
37175966817779503583449
7444C6D75DCFB3__no
2017-11-03T12:07:04kkmrkkblmbrbkc4.xlarge
37175966817779503583449
7444C6D75DCFB3__no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
267
258
250
260
270
280
290
2100
Last modified: 2020-02-24T10:24:12+00:00