megafan wrote:
If n = 2pq, where p and q are distinct prime numbers greater than 2, how many different positive even divisors does n have, including n ?
(A) Two
(B) Three
(C) Four
(D) Six
(E) Eight
Because p and q are distinctprime number > 2, sop and q are ODD numbers
2pq = 2*odd*odd
There are only four EVEN actors of n, including n (because n is even):
2
2*p
2*q
2*pq
C is correct.
Hope it helps.
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