is 2 17196733 - 1
has 5176733 decimal digits
takes 9.793 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LE77893741F68057Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual274222.476366.2162%100000050298105023.40796.5232%245.884268.4200%2.2038%
PrimeNet2650.424261.5385%8000024000000.17044.5375%0.594763.2836%1.7452%
GPU722696.942463.7681%12000032000000.23763.3007%7.180164.9640%1.1959%
Difference+5+215.5339+2.4481%+880000+499781050+23.1702+3.2225%+238.7041+3.4560%+1.0079%

Known prime factors (1 factor, 123.9 bits, 0.00072029% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
171967331937637940616029684660926846904801011138123.866563373851479821686090296001835
33 × 5 × 7 × 37 × 313 × 27847 × 107621 × 152077 × 112948337
2022-09-031520771129483378.738e+95.19989.4901

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-12-02T00:00:00ANONYMOUSv4_computers2000003100000---0.296--2.036%
2022-09-03T22:18:06alpertronManual testing100000050298105038123.86623.4119.5946.826.523%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2001-02-18T00:00:00Net_Forcev4_computers21258--0.002--
2001-03-25T00:00:00Net_Forcev4_computers21259--0.004--
2001-08-18T00:00:00FreeTibetv4_computers21265--0.424--
2013-09-24T16:23:00David CampeauManual testing265266--0.435--
2014-09-09T05:10:00NesowaManual testing266267--0.869--
2017-12-17T22:56:46ramgeisManual testing267268--1.738--
2017-12-17T22:56:46ramgeisManual testing268269--3.476--
2020-03-21T11:02:26lycornManual testing269270--6.953--
2021-09-09T16:32:47SRBaseManual testing270271--13.91--
2021-09-19T14:53:59-Anonymous-Manual testing271272--27.81--
2021-11-30T12:23:11-Anonymous-Manual testing272273--55.62--
2022-01-11T18:02:19TheJudgerManual testing273274--111.2--
2022-01-11T15:00:25-Anonymous-Manual testing273274--111.2--


ECM factoring results:
Total ECM effort:0.866 GHz-days
Estimated T-Level:0.192
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.866


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-01-09T00:00:00ANONYMOUSv4_computersE77893741F68057C9.79
2006-08-25T00:00:00WWU-CSv4_computersE77893741F68057C9.79


PRP results:
No PRP results for M17196733


P-1 factor-bounds graph:
B1 = 1000000, B2 = 502981050 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 200000, B2 = 3100000 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-09-03T22:36:05+00:00