+0  
 
+1
43
1
avatar+314 

For how many positive integers \(n\geq 2\) is  \(1001_n\) a prime number?

 

\(1000_n\) means 1000 but in base n, and so you know what \(1001_n\) is.

 Jan 28, 2019

Best Answer 

 #1
avatar+3976 
+3

\(1001_n = n^3+1 = (n+1)(n^2-n+1) \text{ is never prime}\)

.
 Jan 28, 2019
 #1
avatar+3976 
+3
Best Answer

\(1001_n = n^3+1 = (n+1)(n^2-n+1) \text{ is never prime}\)

Rom Jan 28, 2019

23 Online Users

avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.