is 2 13782701 - 1
has 4149007 decimal digits
takes 6.115 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L7298EB5E4DF7A35Ddouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27269.386566.6667%15500021700000.17032.1691%69.556967.3897%0.7230%
PrimeNet2650.529363.0769%6000019000000.10313.9928%0.632464.5512%1.4743%
GPU722698.662165.2174%9000022000000.13192.7911%8.793966.1882%0.9708%
Difference+3+60.7244+1.4493%+65000-30000+0.0385-0.6219%+60.7629+1.2015%+1.2015%

Known prime factors:
No known factors for M13782701

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-11-24T00:00:00ANONYMOUSv4_computers1550002170000---0.170--2.169%
2001-12-22T00:00:00ANONYMOUSv4_computers1550002170000---0.170--2.169%
2002-01-28T00:00:00ANONYMOUSv4_computers1550002170000---0.170--2.169%
2002-02-10T00:00:00ANONYMOUSv4_computers1550002170000---0.170--2.169%
2002-12-02T00:00:00ANONYMOUSv4_computers1550002170000---0.170--2.169%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-07-25T00:00:00ANONYMOUSv4_computers21265--0.529--
2014-07-02T04:17:00NesowaManual testing265266--0.542--
2015-08-20T10:16:00NesowaManual testing266267--1.084--
2017-12-22T13:48:42-Anonymous-Manual testing267268--2.169--
2018-01-07T23:29:59ramgeisManual testing268269--4.337--
2021-08-08T08:14:43SRBaseManual testing269270--8.675--
2021-09-04T07:04:58SRBaseManual testing270271--17.35--
2021-09-23T09:04:02Dylan DelgadoGPU72_TF271272--34.70--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.675 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.675 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03296.826%
25500000.00399.709%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.675


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-01-28T00:00:00ANONYMOUSv4_computers7298EB5E4DF7A35D6.115
2002-02-10T00:00:00ANONYMOUSv4_computers7298EB5E4DF7A35D6.115
2002-12-02T00:00:00ANONYMOUSv4_computers7298EB5E4DF7A35D6.115
2005-02-18T00:00:00Sturle Sundev4_computers7298EB5E4DF7A35D6.115
2005-03-06T00:00:00Sturle Sundev4_computers7298EB5E4DF7A35D6.115


PRP results:
No PRP results for M13782701


P-1 factor-bounds graph:
B1 = 155000, B2 = 2170000 (P-1 stage 2)
B1 = 155000 (P-1 stage 1)
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107
TF factor-bounds graph:
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2100
Last modified: 2021-09-23T09:04:02+00:00