Primorial numbers

Known as: Primorial numbers

The product of the first n primes, sometimes written p#. Called primorial by analogy with factorial.

The first 18 terms (starting from n=1) are:

1 2 6 30 210 2310 30030 510510 9699690 223092870 6469693230 200560490130 7420738134810 304250263527210 13082761331670030 614889782588491410 32589158477190044730 1922760350154212639070