5 Letter Words That End With O: The Ultimate Cheat Sheet For Scrabble. - Fizz News

Five is the only prime number to end in the digit 5, because all other numbers written with a 5 in the ones-place under the decimal system are multiples of five. Oct 31, 2025 · A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ५ (5)). See 5 § Evolution of the Arabic digit for more.