Let p_n be the nth prime, then the primorial (which is the analog of the usual factorial for prime numbers) is defined by p_n # congruent product_(k = 1)^n p_k. The values of p_n # for n = 1, 2, ..., are 2, 6, 30, 210, 2310, 30030, 510510, ... (OEIS A002110).
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