is_prime

To check if a number n is prime, you only need to check for factors up to the square root of n.
This is because if n has a factor greater than its square root, it must also have a smaller factor
(since a factor is a number that divides n without leaving a remainder).
This method significantly reduces the number of checks needed to determine if a number is prime.

An easy way to analyze international large-scale assessments and surveys
in education or any other dataset that includes replicated weights (Balanced Repeated
Replication (BRR) weights, Jackknife replicate weights,...). It also allows for
analyses with multiply imputed variables (plausible values). It supports the estimation
of univariate statistics (e.g. mean, variance, standard deviation, quantiles), frequencies,
correlation, linear regression and any other model already implemented in R that
takes a data frame and weights as parameters. It also includes  options to prepare
the results for publication, following the table formatting standards of the
Organization for Economic Cooperation and Development (OECD).

Rodolfo Ilizaliturri Lopez

Rrepest

An Analyzer of International Large Scale Assessments in
Education

Rodolfo Ilizaliturri

Francesco Avvisati

Francois Keslair

is_prime function

<dl><dt>n</dt>
<dd>(numeric) Number to verify if it prime</dd></dl>

Arguments

Check if a number is prime — is_prime

<dl>

<dt>n</dt>
<dd>(numeric) Number to verify if it prime</dd>

</dl>

is_prime: Check if a number is prime

Description

Usage

Value

Arguments

Examples