About: http://webisa.webdatacommons.org/424695440

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	Dear Jack, yes the ring you mention is a UFD since indeed the large number of variables makes the quadratic form non-degenerate. (I hope your mentioning that the characteristic is equal to $2$ is a typo!)
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com