Tool to compute a primorial. Primorial n# is the product of all prime numbers inferior or equal to n, or the product of all n first prime numbers (it depend on the selected definition)

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Tool to compute a primorial. Primorial n# is the product of all prime numbers inferior or equal to n, or the product of all n first prime numbers (it depend on the selected definition)

Answers to Questions

How to calculate a primorial?

The term primorial refers to two separate definitions:

Primorial defined as the product of all prime numbers inferior or equal to n is a simple multiplication conditionned par a primality test of the numbers inferior or equal to n.

1, 2, 6, 6, 30, 30, 210, 210, 210, 210, 2310, ...

Primorial defined as a product of the n first primes is equavalent to a multiplication of the list of the first n primes :

2, 6, 30, 210, 2310, 30030, 510510, ...

In both cases, the primorial of p is written with the character sharp: p#

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Source code

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