The answer to exercise marked [BB] can be found in the Back of the Book.
(a) [BB] Is 215 − 1 prime? Explain your answer.
(b) Is 291 − 1 prime? Explain your answer.
(c) Show that if 2n − 1 is prime then necessarily n is prime.
(d) Is the converse of (c) true? (If n is prime, need 2n − 1 be prime?)
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.