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Which is a counterexample to the conjecture? The product of any two consecutive integers is a composite number.

A.
3 ´ 4 = 12

B.
30 ´ 31 = 930

C.
1 ´ 2 = 2

D.
10 ´ 11 = 110
Need help

User Yazaki
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1 Answer

5 votes
1 * 2 = 2 but 2 is not a composite number but a prime number.
Therefore, 1 * 2 = 2 is a counter example to the given conjecture.
User Yonilevy
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