An **integer** is a whole number that can be positive, negative, or zero. It does not have any fractional or decimal part. The set of integers is typically represented by the symbol **ℤ**, which includes:

- Positive integers (e.g., 1, 2, 3, ...)
- Negative integers (e.g., -1, -2, -3, ...)
- Zero (0)

In mathematical terms, the set of integers can be written as:

\[
\mathbb{Z} = \{ ..., -3, -2, -1, 0, 1, 2, 3, ... \}
\]

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Here are 5 related questions for further exploration:
1. What is the difference between an integer and a real number?
2. How do integers relate to natural numbers?
3. What is the significance of integers in number theory?
4. How are integers used in computer programming?
5. Can integers be used in mathematical proofs?

**Tip:** Integers are fundamental in various areas of mathematics, including algebra, number theory, and computer science. Understanding their properties is crucial for solving many types of problems.

Explore the definition and properties of integers. An integer is a whole number that includes positive integers, negative integers, and zero. Learn about their significance in number theory and algebra. Suitable for students in Grades 7-12.

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