Guess the missing number

Let a term before $2$ be $a_0 = 1$ , then the following terms for $n \ge 1$ are given by $a_n = a_{n-1}p(n)$ where $p(n)$ is the $n^{th}$ prime number. Therefore, we have:

$\begin{array} {lllr} a_1 & = a_0 \times p(1) = 1 \times 2 & = & 2 \\ a_2 & = a_1 \times p(2) = 2 \times 3 & = & 6 \\ a_3 & = a_2 \times p(3) = 6 \times 5 & = & 30 \\ a_4 & = a_3 \times p(4) = 30 \times 7 & =& 210 \\ a_5 & = a_4 \times p(5) = 210 \times 11 & = & \boxed{2310} \\ a_6 & = a_5 \times p(6) = 2310 \times 13 & = & 30030 \\ a_7 & = a_6 \times p(7) = 30030 \times 17 & = & 510510 \end{array}$