Problem of the Week Problem E Sum Product Function A function, g, has g(2) = 5 and g(3) = 7. In addition, g has the property that g(a) + g(b) = g(ab) for all positive integers a and b. For example, g(6) = g(2) + g(3) = 12. What is the value of g(648)? g(a) + g(b) = g(ab)