The counterexample to the definition:
"A prime number is an odd number whose only factors are 1 and itself".
Is the number 2, because it is even and it is a prime number.
Here we have the definition for a prime number stated as follows:
"A prime number is an odd number whose only factors are 1 and itself".
A counterexample to that definition can be a prime number that is not odd, so we only need to find that number.
It is really trivial to identify the counterexample, because it is actually the first prime number, which is 2.
2 is only divisible by itself and 1, so it is a prime number, and is not odd, so this is the counterexample to the definition "A prime number is an odd number whose only factors are 1 and itself".
If you want to learn more about prime numbers:
https://brainly.com/question/145452
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