4 ms·

Integers are perfectly fine in math. But they are not a field. Integers modulo something are also well understood in math - but again not a field.

• spacehome 8y ago
  Integers modulo any prime are a field.
  • ummonk 8y ago
    Powers of 2 are not a prime though, unless the power is 1 (i.e. we are dealing with single-bit integers).