| − | An '''odd number''' is any number ''x'' where x modulo 2 = 1. Every such number has the form 2k+1. A number which is not odd is referred to as [[even]]. | + | An '''odd number''' is any number ''x'' where (x modulo 2) = 1. Every such number has the form 2k+1. A number which is not odd is referred to as [[even]]. |