is 2 1697039 - 1
has 510860 decimal digits
takes 0.080 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26717.509368.6567%500000150000000.08805.0227%17.597370.2310%1.5743%
PrimeNet2570.011363.1579%80001300000.00102.7304%0.012364.1638%1.0059%
GPU722610.181065.5738%70001000000.00081.3008%0.181866.0216%0.4478%
Difference+6+17.3283+3.0829%+493000+14900000+0.0872+3.7219%+17.4155+4.2094%+4.2094%

Known prime factors (4 factors, 226.5 bits, 0.01334721% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1697039292739227511134.7698625
3 × 53 × 23
-1251252.518e-98.530e-61.736e-5
1697039622105715618571445.82218329152
26 × 286393
2008-09-30642863933.726e-60.00110.0020
16970391297675808797610622012166.81438233529364900
22 × 3 × 52 × 127445097883
2019-04-272512744509788314.764473.83884.99
16970396486526753897744530873592479.102191113072648823761
167 × 43991 × 26014176913
2020-02-034399126014176913133,06396.722180.64

11 Composite Factors:
exponentprime factorscomposite factordigitsbits*
169703918211474661973592361086072580.591
1697039379880613825826995420978003495131101.583
1697039807291537672944171345063789606725734112.637
16970391898860831158973615499262082060460935113.871
16970394035305368112556252424982116029326566338124.924
16970398417408851651595422339853056316879768581715944145.916
169703923632590111373773974691105142114604811846400745147.406
1697039118129217622822590406630982887199024752418279891349159.693
169703924641057648683242315948207803931159092281590808762
84409
55180.685
169703952365181573108012944715886389917106600484952243479
60504263
58191.739
169703915329342802132526299227208918209256439160287111135
4610146194068187513
69226.507
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T19:18:52alpertronManual testing5000001500000012-
skipped known factor: 29273922751
skipped known factor: 62210571561857
--0.088--5.023%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-30T13:30:00markrManual testing??45.822149.63706e-70.1742.09581e-6


ECM factoring results:

Old Calculation Method

Total ECM effort:15.095 GHz-days
Estimated T-Level:24.536
DigitsB1CurvesCompleteFacMiss
2011000254 / 1002.5407.786%
2550000254 / 2800.90740.302%

New Calculation Method

Total ECM effort:15.095 GHz-days
Estimated T-Level:24.536
DigitsB1CompleteFacMiss
20110008.1940.028%
25500000.74147.686%
302500000.04695.542%
3510000000.00299.791%


ECM Summary

B1B2factorcurvesGHz-days
50000500000017210.22
50000500000030.178
500005000000794.695


Lucas-Lehmer results:
No L-L results for M1697039


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T15:16:34alpertronManual testing
29273922751
62210571561857
326C2229CECD6D__no
2017-10-18T15:59:20Oliver KruseThreadripper
29273922751
62210571561857
326C2229CECD6D__no
2019-04-27T02:19:15ATHec2-PRPCF
29273922751
62210571561857
129767580879761062201
DC67B0D8AD909613no
2019-04-27T20:51:08kkmrkkblmbrbkc5.large
29273922751
62210571561857
129767580879761062201
DC67B0D8AD909613no
2020-02-04T03:39:08Niels_Mache_NextcloudSuperDry-X
29273922751
62210571561857
129767580879761062201
648652675389774453087359
DC67B0D8AD909613no


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
267
2
230
240
250
260
270
280
290
2100
Last modified: 2020-02-04T03:39:08+00:00