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no, 25 is odd and is not prime 25 = 5 x 5

There is only one even Prime number:2, all other prime numbers are odd, but all odd numbers are not prime number

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โˆ™ 2012-10-12 07:11:23
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Q: Are all odd numers prime
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Related questions

Are all prime numbers odd numbers?

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


Are prime numbers are odd numbers?

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


Why are all odd prime?

Not all odd numbers are prime. Prime means you can only divid a number by itself.


Is a Conjecture is false all prime numbers are odd?

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


Is a prime number always an odd number?

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.


All prime numbers except for 2 are odd?

All of the prime numbers are odd except for two.


Is a prime number odd?

All prime numbers are odd except one prime number and that is 2.


All prime numbers are even or odd?

Actually 2 is a prime number so not all are odd primes.


What are all the prime numers?

The answer isn't known. It's suspected that there is no "largest" or last prime number. If that's true, then the answer to the question is an infinite list.


When all the prime factors are odd the number is odd?

That is correct.


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No.


Is all prime numbers are odd?

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Is there more prime numbers or odd?

All prime numbers are odd except for the number 2.


Are all odd numbers prime?

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


Are there any prime an odd numbers?

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


Are all prime numbers between C and 100 are odd?

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There is one even prime number (2); the rest are odd.


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Is 6.3 an even or odd number?

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