3 and 7 are the prime numbers because they cannot be divided by any number other than themselves and 1
because 3+7 = 10 (Sum)
and 3x7 = 21 (Product)
Three and Seven
13 and 5 13+5=18 13x5=65
none
They are 13 and 17
3 and 17
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
There are no such numbers.
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.
Three and Seven
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.
find two positive numbers whose product is a maximum. 1.) the sum is s.
13 and 5 13+5=18 13x5=65
There are no numbers, other than 23 and 1 whose product is 23. It is a prime number. There are many numbers whose sum is 10: 9+1, 8+2, 7+3, 6+4, 5+5, etc.
19
31
2 and 3.
The only factors of -9 are -1 & 9, 3 & -3 and 1 & -9. None of these sum to 22.