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Q: Will the sum of two odd numbers be even or odd?

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Yes. all prime numbers are odd numbers so the sum of any two will be an even number.

None. The sum or product of any two even numbers must be even.

Prime numbers can only be odd, otherwise they'd be divisible by two, and thus not prime. But, as an example: 1 x 3 x 5 x 7= 105. (odd) An odd times an odd is always odd. Since primes are by definition odd, one cannot multiply four prime numbers and get anything other than an odd number, as each step produces an odd number. Thus a multiplicative sum of four primes is always odd. If by a sum you actually mean addition, then anytime you add two odd numbeers you get an even number, so any four prime numbers will give you an even result every time, and one answer is above. I assume you are only dealing with real numbers.Another Answer:Except for the number 2, which is even and prime, all prime numbers are odd. The sum of any two odd numbers is even, and the sum of any two even numbers is even, so the sum of any four odd numbers is also even. There are an infinite number of even numbers that can be written as the sum of four odd prime numbers. The first example is 3 + 5 + 7 + 11 which equals 26 or, in the full case, 3 + 3+ 3 + 3 which equals 18.

There is no solution. You could do it if the numbers were odd: 25 and 27 are consecutive odd numbers that equal 52.

Multiply two odd numbers Add an even and an odd Subtract an odd and an even

Related questions

The sum of two odd numbers or two even numbers is an even number. The sum of an odd number and an even number is an odd number.

The sum of two odd numbers is always even.

The sum of two odd numbers is always even; the sum of three odd numbers is always odd; the sum of four odd numbers is always even; the sum of five odd numbers is always odd; etc

The sum of two odd numbers is always an even number

The sum of two odd numbers is an even number.

even.

37

Any two odd numbers will have an odd product and an even sum.

Yes, when adding two odd numbers together the sum will always be an even number.

No 5 odd numbers add up to 100. The sum of any two odd numbers is even. The sum of any two even numbers is even. So the sum of any 4 odd numbers must be even. Take that and add an odd number and the sum must be odd. Therefore, the sum of any 5 odd numbers must be odd. 100 is even. In conclusion: The sum of any odd number of odd numbers is odd.

even

It is true that the sum of 2 even numbers is never odd

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