is 2 15090167 - 1
has 4542593 decimal digits
takes 7.568 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LE9FD11CE562D2138double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual274253.533767.5676%18500043475000.29952.1329%253.833168.2593%0.6917%
PrimeNet2650.483563.0769%6500020000000.12394.1465%0.607464.6080%1.5310%
GPU722697.911665.2174%10000026000000.17182.9960%8.083366.2595%1.0421%
Difference+5+245.6221+2.3502%+85000+1747500+0.1277-0.8631%+245.7498+1.9998%-0.3503%

Known prime factors (1 factor, 79.3 bits, 0.00052554% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
150901677468402156872653908055772479.30524745922814746364
22 × 3 × 7 × 11 × 17 × 23 × 29 × 233 × 10136803
2022-08-09233101368039,736.10.40180.7501

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-03-10T00:00:00ANONYMOUSv4_computers1850004347500---0.299--2.133%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2022-08-09T20:45:01ATHec2-P_110000002800000027P-12479.3052.057


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-12-31T00:00:00Net_Forcev4_computers21257--0.001--
2001-01-14T00:00:00ANONYMOUSv4_computers21264--0.236--
2001-04-29T00:00:00ANONYMOUSv4_computers21265--0.483--
2016-03-16T02:28:08Mark RoseManual testing265266--0.495--
2014-06-11T15:25:00NesowaManual testing266267--0.990--
2016-07-12T21:55:20mikrManual testing267268--1.981--
2017-10-08T22:00:35ramgeisManual testing268269--3.962--
2021-07-06T23:48:11lycornManual testing269270--7.923--
2021-09-02T17:45:56SRBaseManual testing270271--15.85--
2021-10-09T17:49:35-Anonymous-Manual testing271272--31.69--
2022-01-16T19:55:03Architects CubedGPU72_TF272273--63.39--
2022-03-06T14:34:11Jon PaceManual testing273274--126.8--


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)
2002-03-24T00:00:00ANONYMOUSv4_computersE9FD11CE562D21387.568
2006-07-10T00:00:00ANONYMOUSv4_computersE9FD11CE562D21387.568


PRP results:
No PRP results for M15090167


P-1 factor-bounds graph:
B1 = 1000000, B2 = 28000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 185000, B2 = 4347500 (P-1 stage 2)
B1 = 185000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-08-09T20:45:01+00:00