About: http://webisa.webdatacommons.org/2131125

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	For a semiprime n = pq the value of Euler's totient function (the number of positive integers less than or equal to n that are relatively prime to n) is particularly simple when p and q are distinct:
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org