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Q: Is all prime numbers are odd?

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All prime numbers are odd with the only exception of the prime number 2. However, not all odd numbers are prime.

With exception of the number 2, all prime numbers are odd. However, not all odd numbers are prime.

All of the prime numbers are odd except for two.

There is an infinite amount of prime numbers all of which are odd numbers

No. 9 is not prime.

All prime numbers are odd, exept of the first prime number 2.

All prime numbers are odd except for the number 2.

No, odd numbers such as 9, 15, 21, and 27 are not prime.

Yes. Apart from 2, all prime numbers are odd.

All prime numbers are not odd. 2 is a prime, 2 is not odd.

Except for 2 all other prime numbers are odd. Otherwise, they would be divisible by 2 (and thus not a prime number). This does NOT mean that all odd numbers are prime, but that all prime numbers (aside from 2) are odd.

This is because they are only two factors in that number. It may seem to you that all prime numbers odd, but it is not true. Most of them however, are prime numbers. This is why most of the odd numbers are prime numbers.

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