Re: [sage-support] Re: Apparently wrong results for (integer) is_prime!

[Jori Mantysalo]

On Mon, 9 Mar 2015, John Cremona wrote:

sage: n = 10/2
sage: n
5
sage: n.is_prime()
False

I got AttributeError: 'sage.rings.rational.Rational' object has no 
attribute 'is_prime' on Sage 6.4. When has this changed? Why?

--
Jori Mäntysalo