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public class PrimeChecker { public static void main(String[] args) { int number = 29; // Change this to the number you want to check boolean isPrime = true; if(number <= 1) { isPrime = false; } else { for(int i = 2; i <= Math.sqrt(number); i++) { if(number % i == 0) { isPrime = false; break; } } } if(isPrime) { System.out.println(number + " is a prime number."); } else { System.out.println(number + " is not a prime number."); } } }
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