When is $6 \times 7 = 42$ a counter-example?

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The fact that \[6 \times 7 = 42,\] is a counter-example to which of the following statements?

1. the product of any two odd integers is odd;

2. if the product of two integers is not a multiple of \(4\) then the integers are not consecutive;

3. if the product of two integers is a multiple of \(4\) then the integers are not consecutive;

4. any even integer can be written as the product of two even integers.