About: http://webisa.webdatacommons.org/166113020

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The reason that + and - are forbidden for this challenge, is because if x & (x - 1) is equal to 0, then x is a power of 2.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com