Determine if a Number is Prime using the Prime Library Approach
Ruby provides an in-built Prime library, which can be used to check if a number is prime using the prime? method.
Syntax:
require ‘prime’
n.prime?
Example: In this example, we use prime? method from the prime library in ruby to check whether the number is prime or not
# Determine if a Number is Prime using Prime Library Approach
# Import the prime library
require 'prime'
# Define a method to check if a number is prime using the prime? method
def is_prime(n)
n.prime?
end
# Driver code
puts is_prime(17) # Output: true
puts is_prime(15) # Output: false
Output
true false
How to Determine if a Number is Prime in Ruby?
In this article, we will discuss how to Determine if a Number is Prime and contains a specific value in ruby. We can determine if a Number is Prime through different methods. Let us study them in detail
Table of Content
- Determine if a Number is Prime using Prime Library Approach
- Determine if a Number is Prime using Loop Approach
- Determine if a Number is Prime using Sieve of Eratosthenes
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