-10 belongs to the set of all integers denoted by Z.
Natural numbers.
1.18 is a number and number do not contain any sets (of any kind).
173 belongs to the set of positive natural numbers and it also belongs to the set of prime numbers.
The number 100 belongs to several sets of numbers, including the natural numbers (positive integers), whole numbers (non-negative integers), integers (both positive and negative whole numbers), rational numbers (can be expressed as a fraction of two integers), and real numbers (including both rational and irrational numbers). Additionally, it is a perfect square, as it can be expressed as 10 squared (10 x 10).
There are approx 5.709*10^45 possible sets of numbers that can be made out of the composite numbers in 1 and 200.
Irrational Numbers which are a subset of Real Numbers which are a subset of Complex Numbers ...
Rational numbers
Among other things, it belongs to the following sets: positive numbers; irrational numbers; algebraic numbers.
real numbers, irrational numbers, ...
Natural numbers.
It can be element of: Rational numbers or Real numbers
10 belongs to the set "natural numbers", but it can also belong to whole numbers, and rational numbers
1.18 is a number and number do not contain any sets (of any kind).
17 belongs to the set of prime numbers
The rational numbers, the real numbers and sets of higher order which contain the reals such as the complex numbers.
A set is just a way of describing numbers, and numbers can be described in more than one way. If set A is (for example) all positive prime numbers, and set B is all numbers between 0 and 10, then there are some numbers (2, 3, 5, and 7) that could belong to both sets.
-28 belongs to: Integers, which is a subset of rationals, which is a subset of reals, which is a subset of complex numbers.