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## Search found 765 matches

July 4th, 2010, 3:23 am
Forum: Brainteaser Forum
Topic: 11
Replies: 1
Views: 28499

### 11

Find the least natural number k such that numerator of Sum( 1/Prime(i)^11, {i, 1, k} ) is a prime.
June 24th, 2010, 1:19 pm
Forum: Brainteaser Forum
Topic: 5
Replies: 4
Views: 30298

### 5

"why "5" has anything to do with this question..."for n = 2r = (n^(n-1)-1)/(n-1) = 1(n^r-1)/r^2 = 1for n = 3r = (n^(n-1)-1)/(n-1) = 4(n^r-1)/r^2 = 5
June 21st, 2010, 11:52 pm
Forum: Brainteaser Forum
Topic: 29
Replies: 1
Views: 28989

### 29

Find least number n>7 such that (29^n + 1)/30 is a prime.
June 17th, 2010, 11:55 pm
Forum: Brainteaser Forum
Topic: 5
Replies: 4
Views: 30298

### 5

Prove that r^2 divides n^r-1 for r = (n^(n-1)-1)/(n-1) and n>1.
June 17th, 2010, 2:49 pm
Forum: Brainteaser Forum
Topic: 89
Replies: 4
Views: 29908

### 89

Find least integer k>0 such that the number (91^k - 89^k)/2 ia a prime.
June 8th, 2010, 4:06 pm
Forum: Book And Research Paper Forum
Topic: New Book - Option Trading: Pricing and Volatility Strategies and Techniques by Euan Sinclair
Replies: 1
Views: 31578

### New Book - Option Trading: Pricing and Volatility Strategies and Techniques by Euan Sinclair

Option Trading: Pricing and Volatility Strategies and Techniquesby Euan SinclairHardcover: 320 pages Publisher: Wiley (June 21, 2010) ISBN-10: 0470497106 FinMath.com
May 10th, 2010, 1:53 am
Forum: Book And Research Paper Forum
Topic: New Book - Modelling, Pricing, and Hedging Counterparty Credit Exposure: A Technical Guide (Springer Finance)
Replies: 3
Views: 34026

### New Book - Modelling, Pricing, and Hedging Counterparty Credit Exposure: A Technical Guide (Springer Finance)

<t>Modelling, Pricing, and Hedging Counterparty Credit Exposure: A Technical Guide (Springer Finance)by Giovanni Cesari, John Aquilina, Niels Charpillon, Zlatko Filipovic, Gordon Lee, Ion MandaHardcover: 254 pages Publisher: Springer; 1st Edition. edition (February 19, 2010) ISBN-10: 3642044530 FinM...
May 3rd, 2010, 7:59 am
Forum: Book And Research Paper Forum
Topic: New Book - Fixed Income Finance: A Quantitative Approach by Mark Wise, Vineer Bhansali
Replies: 0
Views: 32647

### New Book - Fixed Income Finance: A Quantitative Approach by Mark Wise, Vineer Bhansali

Fixed Income Finance: A Quantitative Approachby Mark Wise, Vineer BhansaliHardcover: 256 pages Publisher: McGraw-Hill; 1 edition (December 23, 2009) ISBN-10: 0071621202 FinMath.com
April 26th, 2010, 8:58 am
Forum: Brainteaser Forum
Topic: 22
Replies: 8
Views: 47050

### 22

An answer is f(n,26) = 2019.Find the least natural number n such that a numerator of f(n,33) = Sum( 1/k^33, {k,1,n} ) is a prime.
April 26th, 2010, 8:48 am
Forum: Book And Research Paper Forum
Topic: New Book - ARCH Models for Financial Applications by Evdokia Xekalaki, Stavros Degiannakis
Replies: 0
Views: 29521

### New Book - ARCH Models for Financial Applications by Evdokia Xekalaki, Stavros Degiannakis

ARCH Models for Financial Applicationsby Evdokia Xekalaki, Stavros Degiannakis Hardcover: 558 pages Publisher: Wiley (June 8, 2010) ISBN-10: 047006630X FinMath.com
April 24th, 2010, 5:59 am
Forum: Book And Research Paper Forum
Topic: New Book - The End of Wall Street by Roger Lowenstein
Replies: 0
Views: 29079

### New Book - The End of Wall Street by Roger Lowenstein

The End of Wall Streetby Roger LowensteinHardcover: 368 pages Publisher: Penguin Press HC, The (April 6, 2010) ISBN-10: 1594202397 FinMath.com
April 24th, 2010, 5:54 am
Forum: Book And Research Paper Forum
Topic: Uncontrolled Risk: Lessons of Lehman Brothers and How Systemic Risk Can Still Bring Down the World Financial System
Replies: 0
Views: 28919

### Uncontrolled Risk: Lessons of Lehman Brothers and How Systemic Risk Can Still Bring Down the World Financial System

Uncontrolled Risk: Lessons of Lehman Brothers and How Systemic Risk Can Still Bring Down the World Financial Systemby Mark WilliamsHardcover: 256 pages Publisher: McGraw-Hill; 1 edition (March 22, 2010)ISBN-10: 0071638296 FinMath.com
April 23rd, 2010, 5:12 pm
Forum: Book And Research Paper Forum
Topic: New Book - The Blank Swan: The End of Probability by Elie Ayache
Replies: 284
Views: 90992

### New Book - The Blank Swan: The End of Probability by Elie Ayache

The Blank Swan: The End of Probabilityby Elie AyacheHardcover: 496 pages Publisher: Wiley (June 2010) ISBN-10: 0470725222 FinMath.com
April 23rd, 2010, 5:04 pm
Forum: Book And Research Paper Forum
Topic: New Book - Coherent Stress Testing: A Bayesian Approach to the Analysis of Financial Stress by Riccardo Rebonato
Replies: 0
Views: 29255

### New Book - Coherent Stress Testing: A Bayesian Approach to the Analysis of Financial Stress by Riccardo Rebonato

Coherent Stress Testing: A Bayesian Approach to the Analysis of Financial Stressby Riccardo RebonatoHardcover: 240 pages Publisher: Wiley (Aug 2010) ISBN-10: 0470666013 FinMath.com
April 23rd, 2010, 4:50 pm
Forum: Book And Research Paper Forum
Topic: New Book - Financial Engineering: The Evolution of a Profession by Tanya S. Beder, Cara M. Marshall, Editors
Replies: 2
Views: 32195

### New Book - Financial Engineering: The Evolution of a Profession by Tanya S. Beder, Cara M. Marshall, Editors

Financial Engineering: The Evolution of a Professionby Tanya S. Beder, Cara M. Marshall, EditorsHardcover: 528 pages Publisher: Wiley (Nov 2010) ISBN-10: 0470455810 FinMath.com

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