What's a counterexample

What is a counterexample for the conjecture? Conjecture: The product of two positive numbers is grea...

What is a counterexample of the following conjecture? Conjecture: Any number that is divisible by...

What is a counterexample for the conjecture? Conjecture: Any number that is divisible by 4 is also d...

What is a counterexample for the conjecture? Conjecture: Any number that is divisible by 2 is also...

Which is a counterexample of the following conditional? "If a number is divisible by seven, then...

Which is a counterexample of the following conditional statement: "If a number is divisible by 4,...

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