Gru is Handing Out Bananas

Gru wants to distribute $N$ bananas to $K$ minions on his birthday. Gru does not like to just give everyone the same number of bananas, so instead, he wants to distribute bananas in such a way that each minion gets a $distinct$ amount of bananas. That is, no two minions should get the same number of bananas. Gru also loves $gcd$. The higher the $gcd$, the happier Gru and the minions get. So help