dia daoibh gach duine.

I was practicing the personal numbers with the genitive. Táim ag bain úsáid as an leabhar "Gaeilge gan Stró".

according to the book (from what I can understand) is:

comhrá deichniúir (the conversation of ten people)

comhrá an tseisir (the conversation of the six people)

comhrá deichniúr fear (the conversation of ten men)

comhrá an tseisear fear (the conversation of the ten men)

but how would one go about the same idea with numbers above 10?

I know that when you are counting people (above ten) you use the same system to count things (cúig fhear déag)

but how would I say the conversation of the 15 men/the conversation of 15/the conversation of 15 men etc etc. ?

something like "comhrá an chúig fhear déag" ?

GRMA

na cúig fhear déag = the fifteen men

comhrá na gcúig fhear déag (in Standard Irish)

Genitive plural of the article (and eclipsis of the number), because plural article with numbers > 2 (except 30, 30, ...)

comhrá na gcúig fhear déag, in standard Irish

But in the traditional Donegal literature, you'd find the urú after "cúig" and other numbers in the genitive plural : comhrá na gcúig bhfear déag
(source: Tobar na Gaedhilge - free downloadable database of Gaeltacht literature)

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