Answer:
2
Step-by-step explanation:
You are right as rain. You go to the x axis.
Find x = 3.5
f(3.5) is the y value of x = 3.5
f(3.5) = 2
It might help you a bit if you wrote it as a point (3.5,2)
Proof by contadiction.
Let assume there exist such positive integers and whose sum is a prime number , that their greatest common divisor is greater than 1.
Since is a prime number and , then , but we assumed earlier that , and there are no two positive integers that sum up to 1.
q.e.d.
295000
hope this helps