About: http://webisa.webdatacommons.org/29318896

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	I didnt run your code to see if it works, but the GCD fucnction looks correct, in case its not, here is a version of it that I wrote a while back
http://www.w3.org/ns/prov#wasQuotedFrom	linuxquestions.org