What does Numbers 13:22 mean?

They went up through the Negev and came to Hebron, where Ahiman, Sheshai, and Talmai, descendants of Anak, lived. Hebron had been built seven years before Zoan in Egypt. Numbers 13:22 - Modern Text Bible

(They reach Hebron, a very old city, and see the descendants of Anak, who were known for being giants.)