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if it has no other number that can divide into itself but itself

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Another contributor clarified:

You have to determine whether there is any number ... besides '1' and the number under test itself ...

that can divide evenly into the number under test. If you find even one, then it's not a prime.

If there are none, then it's a prime.

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14y ago

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Q: How can you determine if a number is a prime number?
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