It sounds better (:
In French, the phrase "vingt-et-un" is used to represent the number 21 because it is a compound of two words "vingt" (twenty) and "un" (one). This is a linguistic custom for numbers between 21 and 69, where the word "et" is used to connect the tens and units.
181 in French is "cent quatre-vingt-un".
un, deux, trois , quatre, cinq, six, sept, huit, neuf, dix, onze, douze, treize, quatorze, quinze, seize, dix-sept, dix-huit, dix-neuf, vingt, vingt et un, vingt-deux, vingt- trois, vingt-quatre, vingt-cinq, vingt-six, vingt-sept, vingt-huit, vingt-neuf, trente, trente et un.
You would say "J'ai 21 ans" in French.
In French, the number 481 is spelled as "quatre cent quatre-vingt-un."
Here are the words for the numbers, 1 - 30. Of course writing them out doesn't tell you how they are pronounced. Perhaps you could listen on Google Translate. un deux trois quatre cinq six sept huit neuf dix onze douze treize quatorze quinze seize dix-sept dix-huit dix-neuf vingt vingt et un vingt-deux vingt-trois vingt-quatre vingt-cinq vingt-six vingt-sept vingt-huit vingt-neuf trente
vingt-et-un
seize cent vingt-et-unormille six cent vingt-et-un
vingt et un
cent vingt et un
181 in French is "cent quatre-vingt-un".
le vingt et un Avril
Quatre vingt dix huit
soixante et onze (which means 60 and 11 literally)
six mille trois cent vingt et un.
Le vingt et un juin
Vingt et unième (21st as a rank) or le vingt-et-un (in dates) ex/ Max est le vingt et unième de la classe > Max is the twenty-first of the class. le vingt et un octobre > October the 21st.
Les Vingt et un Jours d'un neurasthénique was created in 1901.