primorial
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In mathematics, and more particularly in number theory, primorial, denoted by "p_{n}\#", is a function from natural numbers to natural numbers similar to the factorial function, but rather than successively multiplying positive integers, the function only multiplies prime numbers.
~7 min read
Encyclopedic overview
10 sectionsContents
- Definition for prime numbers
- Definition for natural numbers
- Properties
- Applications
- Compositorial
- Riemann zeta function
- Table of primorials
- See also
- Notes
- References
In mathematics, and more particularly in number theory, primorial, denoted by "p_{n}\#", is a function from natural numbers to natural numbers similar to the factorial function, but rather than successively multiplying positive integers, the function only multiplies prime numbers.
The name "primorial", coined by Harvey Dubner, draws an analogy to primes similar to the way the name "factorial" relates to factors.
Excerpted from Wikipedia’s “primorial” article, available under the CC BY-SA 4.0 licence.