How do I generate the first n prime numbers?

Question

I am learning Ruby and doing some math stuff. One of the things I want to do is generate prime numbers.

I want to generate the first ten prime numbers and the first ten

Answer 1

Here's a super compact method that generates an array of primes with a single line of code.

  def get_prime(up_to)
    (2..up_to).select { |num| (2...num).all? { |div| (num % div).positive? } }
  end