Not sure about the redirect since I don't think I've ever used it. But I'd expect rewrite would do it:
RewriteRule ^/page([0-9]+)/?$ newpage/ [L,QSA,R=301]
Something like that maybe (untested, don't know if it'll work)? Only really useful if the pages are actually named pagex where x is any number.
Otherwise, nothing stops you from using the | separator in the rule pattern to specify the individual pages.