Primorial
Integer representing the product of the first n prime numbers
In mathematics, and more particularly in number theory, primorial, denoted by " p n # {\displaystyle 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.
Nº Q1071077 ★★
Uncommon · Knowledge
Primorial
Integer representing the product of the first n prime numbers
In mathematics, and more particularly in number theory, primorial, denoted by " p n # {\displaystyle 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.
Last price
—
Floor price
—
7-day median
—
30-day sales
0
30-day range
—
In circulation
0
Price history
median
low – high
sales
No sales in this period
Show table
| Date | median | Low | High | sales |
|---|
Sales history
- Last sale
- —
- 30-day average
- —
- 30-day low
- —
- 30-day high
- —
- Sales 7d
- 0
- Sales 30d
- 0
No sales yet.
Anonymous sales: no buyer or seller shown. Figures count player-to-player sales only.
From Wikipedia
In mathematics, and more particularly in number theory, primorial, denoted by " p n # {\displaystyle 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.
Text: Wikipédia, CC BY-SA 4.0. · Image: Wikimedia Commons (Public domain) ·
Related cards
Euclid's theorem
Theorem that the number of prime numbers is infinite
Nº Q1506253 ★★★
Prime number
Positive integer with exactly two divisors, 1 and itself
Nº Q49008 ★★★★★
Prime quadruplet
Four prime numbers of the form {p, p+2, p+6, p+8}
Nº Q1663458 ★
Real number
Quantity along a continuous line
Nº Q12916 ★★★★
Cube number
Integer equal to a cube of a nonnegative integer
Nº Q3006684 ★★
Legendre's formula
Number theory expression
Nº Q23041626 ★