is 2 181549 - 1
has 54652 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
Actual267163.668973.1343%10000000020000000001.360712.2448%165.029676.4240%3.2897%
PrimeNet2400.000055.0000%2000450000.000012.0454%0.000060.4204%5.4204%
GPU722440.000059.0909%3400700000.00008.3884%0.000162.5225%3.4316%
Difference+23+163.6688+14.0434%+99996600+1999930000+1.3607+3.8564%+165.0295+13.9014%+13.9014%

Known prime factors (3 factors, 165.1 bits, 0.09095789% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
18154958807352091032.45316196
22 × 4049
-440494.745e-91.500e-62.752e-6
181549127035862726811443.53034986660
22 × 3 × 5 × 389 × 1499
2008-07-2738914991.207e-53.005e-65.293e-6
1815496865456693184814572030316472789.1491890799919907246686027
31 × 60993545803459570517
2019-11-213160993545803459570517805,213,2142.222e+104.150e+10

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
181549747064270743242315253292375.984
181549403739329014766493978749486805415922337121.603
181549872159214032285023641687421996601453560740132.680
1815495128937397813425401253068622707855246294986908686350165.133
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-05-23T22:22:46kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 5880735209
skipped known factor: 12703586272681
--1.361--12.245%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-27T10:49:00J FeitsmaManual testing??43.530145.61621e-60.0021.16295e-5


ECM factoring results:

Old Calculation Method

Total ECM effort:13.808 GHz-days
Estimated T-Level:28.992
DigitsB1CurvesCompleteFacMiss
2011000792 / 1007.9200.035%
2550000792 / 2802.8295.880%
30250000511 / 6400.79844.975%

New Calculation Method

Total ECM effort:13.808 GHz-days
Estimated T-Level:28.992
DigitsB1CompleteFacMiss
201100057.2620.000%
25500008.1970.028%
302500000.85842.410%
3510000000.07093.215%
4030000000.00599.532%


ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.368
2500002500000051012.42
2500002500000010.024


Lucas-Lehmer results:
No L-L results for M181549


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T00:53:04Oliver KruseDoppelherz
5880735209
12703586272681
C3DFB8743C11B5__no
2017-09-22T10:02:08Oliver KruseManual testing
5880735209
12703586272681
C3DFB8743C11B5__no
2017-09-22T10:05:09Oliver KruseManual testing
5880735209
12703586272681
C3DFB8743C11B5__no
2017-11-06T13:52:01kkmrkkblmbrbkc4.xlarge
5880735209
12703586272681
C3DFB8743C11B5__no
2019-11-22T02:30:19Niels_Mache_NextcloudSuperDry-X
5880735209
12703586272681
686545669318481457203031647
A85CAE8818591E88no
2019-11-24T05:07:53arnaudstm-11-010
5880735209
12703586272681
686545669318481457203031647
A85CAE8818591E88no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
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TF factor-bounds graph:
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2
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Last modified: 2020-05-10T02:07:09+00:00