previousPrime: Previous Prime
In numbers: Number-Theoretic Functions
previousPrime R Documentation
Previous Prime
Description
Find the next prime below n.
Usage
previousPrime(n)
Arguments
n
natural number.
Details
previousPrime finds the next prime number smaller than n,
while nextPrime finds the next prime number below n.
In general the previousn prime will occur in the interval
[n-1,n-log(n)].
In double precision arithmetic integers are represented exactly only up to
2^53 - 1, therefore this is the maximal allowed value.
Value
Integer.
See Also
Primes, isPrime
Examples
p <- previousPrime(1e+6) # 999983
isPrime(p) # TRUE
numbers documentation built on Nov. 23, 2022, 9:06 a.m.
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| previousPrime | R Documentation |
Previous Prime
Description
Find the next prime below n.
Usage
previousPrime(n)
Arguments
n |
natural number. |
Details
previousPrime finds the next prime number smaller than n,
while nextPrime finds the next prime number below n.
In general the previousn prime will occur in the interval
[n-1,n-log(n)].
In double precision arithmetic integers are represented exactly only up to 2^53 - 1, therefore this is the maximal allowed value.
Value
Integer.
See Also
Primes, isPrime
Examples
p <- previousPrime(1e+6) # 999983 isPrime(p) # TRUE
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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