For which operation is the set of integers not closed?

Question

A. addition

B. subtraction

C. multiplication

D. division**

I'm not sure on this one. Check my answer?

Answer 1

division is the integer operation where the result is frequently NOT an integer

Answer 2

Uh, multiplication maybe? Since it's supposed to be the opposite of division.

Answer 3

sorry ... I was commenting on your CORRECT answer

Answer 4

Apologies, I read your original comment wrong..

Answer 5

so whats the answer?

Answer 6

its division