Prompts for a number and outputs the same number in English

Numbers to english words

# convert a triplet (0-999) into english words representing the value
def triplet_to_words(triplet)
	ones = ["", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"]
	teens = ["ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"]
	tens = ["", "", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"]

	left_digit = triplet / 100
	middle_digit = (triplet % 100) / 10
	right_digit = triplet % 10

	word = ""
	word << "#{ones[left_digit]} hundred " if left_digit > 0
	word << "#{teens[right_digit]} " if middle_digit == 1
	word << "#{tens[middle_digit]} " if middle_digit > 1
	word << "#{ones[right_digit]} " unless middle_digit == 1
	word
end

# converts any number into english words representing the value
def number_to_words(number, magnitude = 0)
	return "" if number == 0 # base case

	illions = ["", "thousand", "million", "billion", "trillion", "quadrillion", "quintillion", "sextillion"]

	word = ""
	word << number_to_words(number / 1000, magnitude + 1) if number > 1000
	word << triplet_to_words(number % 1000)
	word << "#{illions[magnitude]} " if magnitude > 0
	word
end

print "Enter a number: "
number = gets.chomp.to_i
puts number_to_words(number)