is 2 13113773 - 1
has 3947640 decimal digits
takes 5.357 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 L-L tests remaining
ResidueStatus
L-L4B28646E32944794double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2699.103965.2174%100000010000000.59232.7769%9.696266.1833%3.6833%
PrimeNet2640.271462.5000%6000017000000.08854.3427%0.359964.1285%1.6285%
GPU722684.545264.7059%9000024000000.12783.1729%4.673165.8257%1.1198%
Difference+1+4.5587+0.5115%+910000-1400000+0.4644-0.3960%+5.0231+0.3575%+0.3575%

Known prime factors (1 factor, 70.5 bits, 0.00053753% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1311377316593170928537946077292270.49163266197030168
23 × 11 × 71 × 16987 × 596093
2020-10-011698759609321.1740.02870.0359

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-08-12T00:00:00ANONYMOUSv4_computers130000617500---0.093--2.105%
2020-10-01T23:05:14firejugglerManual testing100000010000002270.4910.59210.711.1852.777%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-05-06T11:05:52firejugglerMaison5000002450000027--1.209
2021-05-13T05:05:33firejugglerMaison5000002400000065--1.193


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-05-05T00:00:00ANONYMOUSv4_computers?264--0.150--
2013-05-26T08:29:00lycornManual testing264265--0.285--
2014-05-26T11:07:00NesowaManual testing265266--0.570--
2015-07-09T21:58:00NesowaManual testing266267--1.140--
2017-12-22T13:48:48-Anonymous-Manual testing267268--2.279--
2018-01-14T22:53:18ramgeisManual testing268269--4.559--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.242 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:1.242 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.06593.752%
25500000.00699.419%


ECM Summary

B1B2factorcurvesGHz-days
50000500000021.242


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-12-22T00:00:00mhoneyv4_computers4B28646E329447945.357
2004-11-22T00:00:00ANONYMOUSv4_computers4B28646E329447945.357


PRP results:
Exponent "13113773" not found


P-1 factor-bounds graph:
B1 = 1000000 (P-1 stage 1)
B1 = 130000, B2 = 617500 (P-1 stage 2)
B1 = 130000 (P-1 stage 1)
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103
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105
106
TF factor-bounds graph:
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266
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264
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2100
Last modified: 2021-05-13T05:05:33+00:00