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Is 18 a prime number

Updated: 4/28/2022
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12y ago

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No. Because it has more than 2 factors 1,2,3,18.

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12y ago
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13y ago

No, because it is divisible by both 2, 3, 6 and 9, as well as with 1 and itself. A Prime number is only divisible by 1 and itself.

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Q: Is 18 a prime number
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What is the prime number after 18?

The first prime number after 18 is 19.


Is 18 a twin prime?

A twin prime is a prime number that differs from another prime number by two. 18 is not a prime; it is a composite number. All even numbers are composites and 18 is an even number.


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Is the number 18 a prime?

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