What Is a Prime Number? Simple Explanation and Examples

Learn what a prime number is with easy definitions and examples like 2, 3, 5, and 7. Understand the basics of prime numbers in math.

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A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. In simpler terms, it's a number that can only be divided evenly by 1 and the number itself. Examples include 2, 3, 5, and 7. Understanding prime numbers is foundational in mathematics, especially for topics involving divisibility and number theory.

FAQs & Answers

  1. What makes a number prime? A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
  2. Is 1 a prime number? No, 1 is not considered a prime number because it only has one positive divisor, which is itself.
  3. Can even numbers be prime? Only one even number is prime: 2. All other even numbers are divisible by 2 and thus not prime.

Watch More

For a deeper understanding of number theory and divisibility concepts, check out our videos on composite numbers and factors. These topics will help strengthen your foundation in mathematics.

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