Question

The sum of two prime numbers is 85. What is the product of these two prime numbers?

Answer 1

166

Explanation:

This is because only even + odd numbers equal odd numbers, and the only even prime number is two. Since 85-2=83, the other prime number is 83. 2x83=166

Answer 2

-- If you sum two numbers to make an odd number, then one of them
must be even and the other one must be odd.

-- So whatever the two numbers are that add up to 85, one of them
must be even.

-- The only even prime number is 2 .

-- So the two numbers must be 2 and 83 .

-- Their product is 166 .