I have no idea how one could find this out.

  • BananaTrifleViolin@lemmy.world
    link
    fedilink
    English
    arrow-up
    52
    arrow-down
    2
    ·
    2 days ago

    Yes: Five has four letters. Nine has four letters.

    There are no more.

    If you meant to ask if there are any more whole numbers with the same number of letters in the name as the number, then the answer is no. It is fairly simple to check - you only have to look at the numbers 0-30 before it becomes clear no other number will fit this pattern.

    If you went into fractions like 20.12325 then there will be many numbers where all the letters added would get close but the fraction itself would mean you couldn’t quite reach the exact number as you can’t have fractions of letters.

    If you included negative numbers then “minus eleven” has 11 letters. Minus thirteen has 13 letters. It seems to again break down once you go beyond 13, and its dodgy to include negative numbers as you can’t have negative letters.

    So, no.