The product of two odd numbers is always odd.
The product of two odd numbers is never even.
None. The sum or product of any two even numbers must be even.
even
YES!
The product of two odd numbers is always odd.
No such numbers exist; the product of two odd numbers is always odd.
Any two odd numbers will have an odd product and an even sum.
The product of two odd numbers is never even.
None. The sum or product of any two even numbers must be even.
I guess you mean "product" - the product of two odd numbers is odd. (For example, 3x3=9, 5x3=15, etc.
Without knowing what the product is, it will be difficult to help. Presumably, you can tell the difference between even and odd numbers. If you are trying to predict, the product of two evens is even, the product of two odds is odd and the product of an even and an odd is even.
even
YES!
The product of two odd numbers is always an odd number.
No two consecutive numbers have a product that is an even number. Any two consecutive numbers include one odd number and one even number. The product of one odd number and one even number is always an odd number.
The product of multiplication results in a number that has all of the factors of the two numbers being multiplied. All even numbers have the prime factor 2. Since no odd number has the factor 2, no product of those numbers can have it. So: - Odd numbers times odd numbers produce odd numbers. - Odd numbers times even numbers produce even numbers. - Even numbers times even numbers produce even numbers.