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Prime Number Checker

Enter a number and find out if it's a prime number. The opposite of a prime number is a composite number. If the number you enter is a composite number, you will be given the factors for that number, other than 1 and the number that you entered.

You can enter really large numbers like 224448222 and it should take less than a minute to do all the calculations. Give it a try!

If you want to run the program again, all you have to do is refresh this web page.

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