5 Letter Words That Start With E: Are YOU Smart Enough To Know Them All?

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. Learn the different ways number 5 can be represented. See the number five on a number line, five frame, ten frame, numeral, word, dice, dominoes, tally mark, fingers and picture representations. Mathematics Five is the third prime number, after two and three, and before seven. The number five is also an odd number. Most people have five fingers (including one thumb) on each hand and five toes.

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.