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Java Math -- isPrime (See related posts)

// Prime Number Test

	public static boolean isPrime(long n) {
		boolean prime = true;
		for (long i = 3; i <= Math.sqrt(n); i += 2)
			if (n % i == 0) {
				prime = false;
				break;
			}
		if (( n%2 !=0 && prime && n > 2) || n == 2) {
			return true;
		} else {
			return false;
		}
	}
to java math Prime by Jef on Tue Oct 24 03:56:18 -0400 2006

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