CREATE TABLE table_340 ("Dep." TEXT, "Chief town" TEXT, "Arrondissement" TEXT, "Population  ( 1999 ) " TEXT, "Area  ( Square km ) " FLOAT, "Pop density" FLOAT, "Cantons" FLOAT, "Communes" FLOAT)

How many communes when the arrondissement is cosne-cours-sur-loire?
SELECT MIN("Communes") FROM table_340 WHERE "Arrondissement" = 'Cosne-Cours-sur-Loire'
SELECT MIN("Communes") FROM "table_340" WHERE "Arrondissement" = 'Cosne-Cours-sur-Loire'