is 2 190297 - 1
has 57286 decimal digits
takes 0.001 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
Actual267156.145073.1343%10000000020000000001.360712.2865%157.505776.4352%3.3009%
PrimeNet2400.000055.0000%2000450000.000012.1349%0.000060.4607%5.4607%
GPU722440.000059.0909%3400700000.00008.4558%0.000162.5501%3.4592%
Difference+23+156.1449+14.0434%+99996600+1999930000+1.3607+3.8307%+157.5056+13.8851%+13.8851%

Known prime factors (3 factors, 165.5 bits, 0.08696394% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1902973044753721.5388
23
-881.471e-125.349e-81.089e-7
1902971446933150167771547.040380177604
22 × 33 × 3520163
2008-08-262735201630.00020.00130.0024
1902971490675838859885466731145478073096.912391670872073623196038599
3 × 31 × 47 × 269 × 345972859 × 962822339
2021-01-303459728599628223391.124e+112.53794.7078

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1902974405554049772768210812168.578
19029745387397323961528544860553877900667136118.450
1902972156908287400517172502039514445565297355803944143.952
1902976567252978787586862527102317726678275819975991936750165.490
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-01-10T11:43:45kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 3044753
skipped known factor: 144693315016777
--1.361--12.287%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-08-26T20:12:00ANONYMOUSManual testing??47.040155.16931e-50.0020.000


ECM factoring results:

Old Calculation Method

Total ECM effort:17.633 GHz-days
Estimated T-Level:29.156
DigitsB1CurvesCompleteFacMiss
2011000813 / 1008.1300.028%
2550000813 / 2802.9045.454%
30250000532 / 6400.83143.522%

New Calculation Method

Total ECM effort:17.633 GHz-days
Estimated T-Level:29.156
DigitsB1CompleteFacMiss
201100062.7800.000%
25500009.1100.011%
302500000.96937.936%
3510000000.08092.280%
4030000000.00599.460%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.370
250000250000004079.92
2500002500000030.073
2500003375000070.190
25000038500000140.402
2500003850000010.029
2500001250000001005.650


Lucas-Lehmer results:
No L-L results for M190297


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T01:27:57Oliver KruseOllaptop
3044753
144693315016777
7F4F76D2DC04B2__no
2017-09-22T10:01:54Oliver KruseManual testing
3044753
144693315016777
7F4F76D2DC04B2__no
2017-10-12T04:51:35kkmrkkblmbrbkc4.xlarge7F4F76D2DC04B2__no
2020-04-17T18:58:54Oliver KruseAddPrpType5
3044753
144693315016777
F9014B77C5DD65__no
2021-01-30T09:56:57Jinyuan WangManual testing
3044753
144693315016777
149067583885988546673114547807
F9014B77C5DD6549no
2021-01-30T12:24:32ViliamF3
3044753
144693315016777
149067583885988546673114547807
F9014B77C5DD6549no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
109
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2022-01-22T08:31:23+00:00