print_prime_multiplication_table.rb

def is_prime(num)
  i = 2
  while(i <= Math.sqrt(num))
    return false if num % i === 0
    i = i + 1
  end
  true
end

def print_table(num)
  print "\n\rTable for: #{num}: "
  (1..10).map { |i| num * i }.each { |i| print "#{i} " }
end

def print_prime_multiplication_table(num)
  count = 0
  tmp = 2
  while(count < num)
    if(is_prime(tmp))
      print_table(tmp)
      count = count + 1
    end
    tmp = tmp + 1
  end
end

n = ARGV[0].to_i || 10
print_prime_multiplication_table n