Let's calculate the probability of each card separately, then the final probability will be the product of each probability.
There are 4 ace cards in a deck of 52 cards, therefore the probability of picking an ace is 4/52.
Then, there are 12 face cards in a deck, but now the deck has only 51 cards (one already picked), so the probability is 12/51.
There are 4 cards numbered 6 in a deck, which now has 50 cards, so the probability is 4/50.
Then, the final probability is:
The probability is 0.001448.