a) Which integers CANNOT be expressed as a product of 0 or more prime numbers? For instance, 6 CAN be expressed as product of two primes, 2 and 3 . We interpret a product of 0 numbers to be 1 . 1 b) How would the answer to part a change if we considered negative integers with exactly two positive divisors to be prime? For instance,â3would be considered a prime, but 1 still would not. c) With the redefinition of primes in part b, would the Fundamental Theorem of Arithmetic still be true? Explain. Problem 5: Every 24 years, a bird flies to a mountain to sharpen its beak. Every 9 years, a bird watching expedition journeys to the mountain. If the bird and the expedition have just arrived to the mountain at the same time, how many years will pass before this happens again?