nextprime function now working as expected with Ans

[Joe Horn]

The problem is caused by Prime having two different values of Ans, one for Home, and one for CAS. Since nextprime() is a CAS function, nextprime(Ans) always uses CAS's Ans, not Home's Ans. Does this mean that the HP Prime has multiple personality disorder? Yes, and it's scary because CAS's personality sneaks across into Home without warning, as you discovered.

Solution to this problem is simple: nextprime() and nextprime(Ans) work as desired in CAS view.