<http://webisa.webdatacommons.org/313889190>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<gmatclub.com> .
<http://webisa.webdatacommons.org/313889190>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/313889190>	<http://www.w3.org/ns/prov#value>	"n is a positive integer, 2^n -1 is a prime number? 1) n is a prime number 2) n???7 _________________" .
<http://webisa.webdatacommons.org/prov/299094367>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/313889190> .