Maths-
General
Easy

Question

Show the conjecture is false by finding a counterexample.
All prime numbers are odd.

The correct answer is: it shows that All prime numbers are not odd


    We have given a statement that
    All prime numbers are odd
    Before deciding we will know the definition of prime numbers
    Definition - a prime number has only 2 factors - itself and 1.
    Hence the smallest natural prime number is 2, and the only on that is even. All other prime numbers are odd, and there are infinitely many prime numbers.
    Therefore, it shows that All prime numbers are not odd.

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