14. As shown in the figure, 21 small black dots represent consecutive natural numbers increasing from left to right. Among the 5 small black dots marked with little flags, 2 represent numbers that are multiples of 3, another 2 represent numbers that are multiples of 5, and the remaining 1 represents a number that is a multiple of 7. If the small black dots representing multiples of 3, 5, and 7 are all marked with little flags, then there are still $\qquad$ small black dots without little flags.
$9$