What are the subsets of integers?

Answer 1

There are an infinite number of subsets.

The empty set,

Even numbers

Odd numbers

Multiples of 3

Multiples of 4, etc

Integers from 1 to 31 (days of the month)

Integers from 0 to 23 (hour display on some digital clocks)

{1}, {1,4,456,-5}, (1,2,3,4,5,6,7,3492}

and so on, and on, and on.
There are an infinite number of possible subsets.

Odd numbers, even numbers, the age (in whole years) of each member of my family, my friends' telephone numbers, prime numbers, integers between 70 and 83 are all examples of subsets.

Answer 2

Integers form a subset of numbers but I'm not sure if that's what you mean.