is 2 15034949 - 1
has 4525971 decimal digits
takes 7.200 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L3EFA33424FA47611double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual273127.226567.1233%20000006375789420242.523410.1903%369.749970.4735%3.3502%
PrimeNet2650.485263.0769%6500020000000.11834.1443%0.603664.6071%1.5302%
GPU722697.940665.2174%10000026000000.16402.9943%8.104666.2589%1.0415%
Difference+4+119.2859+1.9059%+1900000+6373189420+242.3594+7.1960%+361.6453+4.2146%+4.2146%

Known prime factors (1 factor, 74.9 bits, 0.00049806% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
15034949348269833290494441111992374.8831158200913386851
1158200913386851
2022-04-0611158200913386851361.9343,817,31481,838,541

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-03-16T00:00:00ANONYMOUSv4_computers1700002422500---0.203--2.045%
2002-07-20T00:00:00Pi_Rhov4_computers1850004393750---0.288--2.394%
2002-10-26T00:00:00Pi_Rhov4_computers1850004393750---0.288--2.394%
2022-03-22T15:42:54Luminescence5950X220000006375789420---242.5--10.190%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2022-04-06T02:49:21ATHec2-P_110000002900000027P+12374.8832.094


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-12-31T00:00:00Net_Forcev4_computers21257--0.001--
2001-01-08T00:00:00ANONYMOUSv4_computers21264--0.237--
2001-01-08T00:00:00subgeniusv4_computers21265--0.485--
2014-06-11T15:20:00NesowaManual testing265266--0.497--
2014-06-11T15:20:00NesowaManual testing266267--0.994--
2015-12-16T21:55:26mikrManual testing267268--1.988--
2017-10-01T21:35:50ramgeisManual testing268269--3.976--
2020-06-30T15:51:52YxinityManual testing269270--7.952--
2021-09-02T18:00:43SRBaseManual testing270271--15.90--
2021-10-10T11:54:55-Anonymous-Manual testing271272--31.81--
2022-03-04T16:41:01Architects CubedGPU72_TF272273--63.62--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.728 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.728 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03296.826%
25500000.00399.709%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.728


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-10-26T00:00:00Pi_Rhov4_computers3EFA33424FA476117.200
2006-05-29T00:00:00ANONYMOUSv4_computers3EFA33424FA476117.200


PRP results:
No PRP results for M15034949


P-1 factor-bounds graph:
B1 = 2000000, B2 = 6375789420 (P-1 stage 2)
B1 = 1000000, B2 = 29000000 (P+1 stage 2)
B1 = 2000000 (P-1 stage 1)
B1 = 1000000 (P+1 stage 1)
B1 = 185000, B2 = 4393750 (P-1 stage 2)
B1 = 170000, B2 = 2422500 (P-1 stage 2)
B1 = 185000 (P-1 stage 1)
B1 = 170000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-04-06T02:49:21+00:00