Grokking Java Basics
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Check if a Number is Prime

Problem Statement

Write a Java program to check if a given number is a prime number. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. For example, 2, 3, 5, and 7 are prime numbers, whereas 4, 6, 8, and 9 are not.

Examples

Example 1:

  • Input: 7
  • Output: 7 is a prime number.
  • Justification: The number 7 has no divisors other than 1 and 7, making it a prime number.

Example 2:

  • Input: 10
  • Output: 10 is not a prime number.
  • Justification: The number `10

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