Full Idea
When Frege urges that numbers are to be thought of as objects, the content of this claim has to be derived from its opposition to the claim that numbers are Fregean concepts.
Gist of Idea
Frege claims that numbers are objects, as opposed to them being Fregean concepts
Source
report of Gottlob Frege (Grundlagen der Arithmetik (Foundations) [1884]) by Crispin Wright - Frege's Concept of Numbers as Objects 1.ii
Book Reference
Wright,Crispin: 'Frege's Conception of Numbers' [Scots Philosophical Monographs 1983], p.7
Related Idea
Idea 8488 A concept is a function whose value is always a truth-value [Frege]