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Q: Why is 667 not a prime number?

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21 is a composite number, not a prime, having prime factors 3x7.

No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.No, there is no largest prime number. Also 57 is not a prime.

There is no number such as Queen Prime Number.

No, you can easily see that this is an even number, so it is a multiple of 2.2 IS A PRIME NUMBER!!Any number that is a multiple of a prime number is NOT a prime.

13 is a prime number. The only prime factor of a prime number is the number itself.

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1, 23, 29, 667

No, it is composite as 667 = 23 x 29

It is 29 because 29*23 = 667

It is a multiple of 23.

667

The prime factors of 667 are 29 and 23. 29*23=667.

667

No. It has more than two factors.

23 x 29= 667

The factors of 667 are: 1 23 29 667.The prime factors are: 23, 29

667 is composite. Its factors are 1, 23, 29, and 667.

23*29=667

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