Real, complex, quaternion, etc. But more specifically it's a transcendental real number, not being the root of an integer polynomial (and certainly not the ratio of two integers).
Pi is an Irrational number, which is one of the two subcategories of real numbers.
Pi is both an irrational number and a transcendental number.
The mathematically correct answer is: any set that contains it. For example, it belongs to the set of all numbers between -3 and +2, the set {0, -3, 8/13, sqrt(97), pi}, the set {0}, the set of the roots of x3 - x2 + x = 0, the set of all integers, the set of all rational numbers, the set of all real numbers, the set of all complex numbers.
It belongs to the set of prime numbers
Rational and Real numbers
Pi (π) belongs to several number sets, including the set of real numbers and the set of irrational numbers. As an irrational number, it cannot be expressed as a fraction of two integers, and its decimal representation is non-repeating and non-terminating. Additionally, since pi is a real number, it is also part of the set of complex numbers.
The set of numbers which 3 does not belong is the set of even numbers.
4 belongs to any set that contains it. So {1, pi, 4, -37.5689, sqrt(2)} is a possible answer.
It belongs to any set which contains it. For example: {-21} {pi, yellow, -21, Germany} {numbers smaller than -17}
Pi (π) belongs to several sets of numbers, primarily the set of real numbers and the set of irrational numbers. As an irrational number, it cannot be expressed as a simple fraction, meaning its decimal representation is non-repeating and non-terminating. Additionally, since it can be found on the number line, it is also a member of the set of complex numbers, where it can be represented as π + 0i.
Any set of numbers that contain them! For example, they belong to the set {10, 11} or {10, 11, sqrt(2), pi, -3/7}, or {10, 11, bananas, France, cold} or all whole numbers between 3 and 53, or counting numbers, or integers, or rational numbers, or real numbers, or complex numbers, etc.
Pi is an Irrational number, which is one of the two subcategories of real numbers.
Pi is both an irrational number and a transcendental number.
To any set that contains it! It belongs to {5.385164807}, or {45, sqrt(2), pi, 5.385164807, -3/7}, or all numbers between 4 and 53, or rational numbers, or real numbers, or complex numbers, etc.
10 belongs to the set "natural numbers", but it can also belong to whole numbers, and rational numbers
To any set that contains it! It belongs to {23.5}, or {23.5, sqrt(2), pi, -3/7}, or all whole numbers between 13 and 53, or integer multiples of 0.5, or rational numbers, or real numbers, or complex numbers, etc.
Numbers that are not rational belong to the set of irrational numbers. This set includes numbers that cannot be expressed as a fraction of two integers, such as the square root of 2 or pi (π). Irrational numbers have non-repeating, non-terminating decimal expansions. Together with rational numbers, they form the real number system.