For an arbitrary integer a, verify the following:
(a) 2 | a(a + 1), and 3 | a(a + 1 )(a + 2).
(b) 3 | a(2a2 + 7).
(c) If a is odd, then 32 | (a2 + 3)(a2 +7).
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.