Question

What is the prime number that's one-half the product of the only two consecutive prime numbers?

Answer 1

A,b - the consecutive prime numbers
c - the prime number

$\dfrac{ab}{2}=c$

therefore a or b must be a even number. Conclusion a = 2, therefore b = 3.

Substitute:

$\dfrac{2\cdot3}{2}=3$

Answer: The prime number that's one-half the product of the only two consecutive prime numbers is equal 3.