is 2 1630379 - 1
has 490793 decimal digits
takes 0.073 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L304C0C812DF6BAD1double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26718.225268.6567 %1000000200000000.13185.6800 %18.357070.4370 %
Target2610.188465.5738 %65003500000.00161.1184 %0.190065.9588 %
Difference+6+18.0367+3.0829 %+993500+19650000+0.1302+4.5617%+18.1669+4.4782 %

Known prime factors (2 factors, 159.6 bits, 0.00978804% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
16303799715126812249414534972169.719297940749121812
22 × 3 × 787 × 31548152173
2013-04-2978731548152173128.66111.32207.92
163037911261187721333788189942874972889.863345354905863415444812
22 × 351749 × 245455499421047
2019-10-28351749245455499421047100,732,155866,1311,617,691

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-02-29AxonManual testing100000100000--0.0061.997%
2012-02-29AxonManual testing200000200000--0.0132.724%
2012-02-29AxonManual testing300000300000--0.0193.206%
2012-02-29AxonManual testing400000400000--0.0263.573%
2012-02-29AxonManual testing500000500000--0.0323.871%
2012-02-29AxonManual testing600000600000--0.0394.124%
2012-02-29AxonManual testing700000700000--0.0454.344%
2012-02-29AxonManual testing800000800000--0.0524.540%
2012-02-29AxonManual testing900000900000--0.0584.715%
2012-02-29AxonManual testing10000001000000--0.0654.875%
2012-03-01AxonManual testing1000000800000012--0.0898.197%
2012-03-01AxonManual testing10000002000000012--0.1329.644%
2016-03-17alpertronManual testing5000001500000012---8.755%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-06-23ANONYMOUSv4_computers212580.024
2010-04-29Architects Cubedm1_f22602610.094
2010-09-13GrunwalderGIMPManual testing212630.979


ECM factoring results:
Total ECM effort:31.307 GHz-days
Estimated T-Level:25.715
DigitsB1CompleteFacMiss
201100014.5380.000%
25500001.66418.942%
302500000.14386.682%
3510000000.01099.008%


ECM Summary

B1B2factorcurvesGHz-days
10.169
50000500000021912.18
500005000000291.629
250000400000005017.33


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-11-21ANONYMOUSv4_computers304C0C812DF6BAD10.073


PRP results:
dateuseridcompidcofactorsres64
2017-10-02Oliver KruseGTX-0
971512681224941453497
887B1B009299FE19
2017-11-01kkmrkkblmbrbkc4.xlarge
971512681224941453497
887B1B009299FE19
2019-10-29mnd975204b
971512681224941453497
1126118772133378818994287497
1414623852BF8E67
2019-10-29ATHec2-PRPCFDC
971512681224941453497
1126118772133378818994287497
1414623852BF8E67


CERT results:
No CERT results for M1630379


P-1 factor-bounds graph:
B1 = 1000000, B2 = 20000000 (P-1 stage 2)
B1 = 1000000, B2 = 8000000 (P-1 stage 2)
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 900000 (P-1 stage 1)
B1 = 800000 (P-1 stage 1)
B1 = 700000 (P-1 stage 1)
B1 = 600000 (P-1 stage 1)
B1 = 500000 (P-1 stage 1)
B1 = 400000 (P-1 stage 1)
B1 = 300000 (P-1 stage 1)
B1 = 200000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
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1010
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TF factor-bounds graph:
263
261
258
this exponent TF target: 61
TF double-checked to: 67
ECM T-Level=25.71 ~= 69-bit
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Last modified: 2024-03-13T02:15:48+00:00