is 2 15139591 - 1
has 4557472 decimal digits
takes 7.593 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L9FE4011A2329C3D5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27263.167766.6667%17000024650000.21462.3078%63.382367.4359%0.7693%
PrimeNet2650.481963.0769%6500020000000.12394.1485%0.605864.6087%1.5318%
GPU722697.885765.2174%10000026000000.17182.9974%8.057566.2600%1.0426%
Difference+3+55.2820+1.4493%+70000-135000+0.0428-0.6896%+55.3248+1.1760%-0.2733%

Known prime factors (1 factor, 79.6 bits, 0.00052555% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
151395918951331279880422998529612479.56629562658858751280
24 × 3 × 5 × 167 × 844439 × 873469
2022-10-2684443987346913,1280.61521.2498

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-03-31T00:00:00ANONYMOUSv4_computers1700002465000---0.215--2.308%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-08-09T01:12:36ATHec2-P_1200000760000027--0.486
2022-10-26T02:24:04ATHec2-P_11000000100000065P-12479.5661.056


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-12-31T00:00:00Net_Forcev4_computers21257--0.001--
2000-12-31T00:00:00Net_Forcev4_computers21258--0.003--
2001-02-18T00:00:00ANONYMOUSv4_computers21265--0.482--
2014-05-14T07:10:00NesowaManual testing265266--0.494--
2014-05-14T07:10:00NesowaManual testing266267--0.987--
2017-12-24T18:15:17ramgeisManual testing267268--1.974--
2017-12-24T18:15:17ramgeisManual testing268269--3.949--
2021-06-30T12:28:52lycornManual testing269270--7.897--
2021-09-02T18:16:52SRBaseManual testing270271--15.79--
2021-10-15T18:41:34-Anonymous-Manual testing271272--31.59--


ECM factoring results:
Total ECM effort:0.763 GHz-days
Estimated T-Level:0.192
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.763


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-11-02T00:00:00BranMuffinv4_computers9FE4011A2329C3D57.593
2005-09-22T00:00:00TheJudgerv4_computers9FE4011A2329C3D57.593


PRP results:
No PRP results for M15139591


P-1 factor-bounds graph:
B1 = 1000000 (P-1 stage 1)
B1 = 170000, B2 = 2465000 (P-1 stage 2)
B1 = 170000 (P-1 stage 1)
104
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106
104
105
106
107
TF factor-bounds graph:
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2100
Last modified: 2022-10-26T02:24:04+00:00