-1

It is known that there exists a prime p between 2n and 3n. Now whether there is a upper bound of p. or whether there is a upper bound of a prime between 2n and kn, where k is an odd integer.

flag
1 
already at math.stackexchange.com/questions/112283/… – Will Jagy Feb 23 2012 at 3:11
Check out the Wikipedia article on Bertrand's postulate. – S. Carnahan Feb 23 2012 at 3:14

closed as not a real question by Andres Caicedo, Yemon Choi, Igor Rivin, Will Jagy, S. Carnahan Feb 23 2012 at 3:13

Browse other questions tagged or ask your own question.