What is a prime number?

QuestionsQuestions8 SkillsProPython Control StructuresNov, 12 2025
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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, a prime number can only be divided evenly (without a remainder) by 1 and the number itself.

Examples of Prime Numbers:

  • 2: Divisible by 1 and 2 (only).
  • 3: Divisible by 1 and 3 (only).
  • 5: Divisible by 1 and 5 (only).
  • 7: Divisible by 1 and 7 (only).

Non-Examples:

  • 4: Divisible by 1, 2, and 4 (not prime).
  • 6: Divisible by 1, 2, 3, and 6 (not prime).

Key Points:

  • The smallest prime number is 2, which is also the only even prime number.
  • All other even numbers greater than 2 are not prime because they can be divided by 2.

If you want to explore more about prime numbers or related concepts, feel free to ask!

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