Null Set Definition, Properties & Examples

Taking the set of natural numbers as the universal set, write down the complements of the following set: {x : x is a prime number} - Mathematics | Shaalaa.com

if a is a set of natural numbers an k is a natural number greater than 1 let bka ww is the representation in base k of some number in ahere we do not allow leads 0s in the represenation of a 47551