I have no idea how one could find this out.
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.
To your first point: zero also has four letters.
Sigh. Time to introduce real letters that can be negative and fractional.
I don’t know in English, but in Spanish the word for five, Cinco, has five letters.
I was able to come up with a list of similar scenarios for various languages using a simple formula in LibreOffice Calc:
=LEN(A2)=ROW(A2)-1(row 1 being a header row)Language Word Digit Danish To 2 Danish Tre 3 Danish Fire 4 Dutch Vier 4 English Four 4 Finnish Viisi 5 French N/A N/A German Vier 4 Indonesian N/A N/A Italian Tre 3 Norwegian To 2 Norwegian Tre 3 Norwegian Fire 4 Polish N/A N/A Portuguese Cinco 5 Spanish Cinco 5 Swedish Tre 3 Swedish Fyra 4 Turkish Dört 4 This is a clever solution
In Hungarian, it’s “négy”, but it’s actually only three letters, n, é and gy.
The number one hundred million sixty six thousand five hundred seventy three has exactly 100,066,537 letters.
Wait a minute…
Three
two to power of four = 16
To
Dammit, I was going to do that one…
It’s the only one in English unless you allow things like “The absolute value of -20”.
The fifth letter of “fifth” completes the word.
Yeah. Fivee. Siiiix. Seeveen. Eeeeight. Niiiiiiine.
No, but cinco has 5, lol.
sephene
Remind me of the classic sequence where every number leads to 4.
10 -> 3 -> 5 -> 4
1024 -> 21 -> 9 -> 4
Stand up maths did a video on this 8 years ago. https://youtu.be/LYKn0yUTIU4?si=1Q_9DCt2Eo6aoVpL
I think the answer is no. It would only be possible with very small numbers. Even by the time you’ve reached 100, it’s not going to happen again.
-9 (minus nine) kind of works if we’re getting desperate.
“Negative Fifteen” and “Negative Seventeen” also work in the same way
But negative fifteen has 15 letters, not -15
neetfif evitagen has -15 letters, but i dont think its a number
Excellent
