It is impossible for the product of two prime numbers to be prime. It is impossible for the sum of two prime numbers to be prime as long as one of the numbers isn't 2.
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
12
There are no such numbers.
391
The sum of three odd numbers will be odd, whether they are prime or not. The sum of three prime numbers can be even as long as one of them is 2.
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
12
There are no such numbers.
391
The sum of three odd numbers will be odd, whether they are prime or not. The sum of three prime numbers can be even as long as one of them is 2.
Not possible in whole numbers
The smallest four prime numbers are 2, 3, 5, 7, and their sum happens to be a prime.
There are no two numbers whose product is 23 and whose sum is 10. 23 is a prime number, and the only numbers whose product is 23 are 23 and 1. A prime number can only be divided by itself and 1.
There is no product of prime numbers building 66. The sum of prime number is doing it: 13 +53 = 66
That isn't possible. The sum of three odd numbers will always be odd. You can make the sum of 3 prime numbers equal to 32 if one of them is 2 (which is not odd).
30 - 31 = -1
2 3 5 7 11 Sum: 28 Product: 2310