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2 is a Prime number. It is only evenly divisible by itself and one.
22 is composite. 22 = 2 * 11
13 is a prime number. It is only evenly divisible by itself and one.
23 is a prime number. It is only evenly divisible by itself and one.
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Earn +20 ptsQ: 2 22 13 23 which is not a prime number?
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9 22 23 prime numbers?
23 is a prime number but 9 and 22 can both be factored 9 is 3x3 and 22 is 2x11
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The prime number less than 10 that, when added to either 10 or 20, results in a prime number is 3. When you add 10 to 3, you get 13, which is a prime number. Similarly, when you add 20 to 3, you get 23, which is also a prime number.
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