5 Letter Words That End With O: Are YOU Part Of The Problem? - 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. \"SolveJoin millions of users in problem solving!Contact Us About Blog Terms Privacy Your guide to the number 5, an odd number which is prime. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.