Question

What is a counterexample for the conjecture conjecture any number that is divisible by 2 is also divisible by 4?

Answer 1

Counter-example......22

22/2 = 11
22/4 = 5.5

Answer 2

Answer:

66 is a counter-example to the given conjecture.

Step-by-step explanation:

A counter-explample can be defined, in logic, as an exception to the rule, in this case, an example that shows the conjecture is wrong. This method is used to demonstrated a given "function" or statement.

So, we just need to find one case where a number can be divided by 2 but not by 4, which is 66, because

$\frac{66}{2}=33\\\frac{66}{4}=16.5$

Therefore, the conjecture is wrong, because there's a case where a number can be divided by 2 but not by 4.