CREATE TABLE table_2431 ("Date" TEXT, "Tournament" TEXT, "Location" TEXT, "Purse  (  $  ) " FLOAT, "Winner" TEXT, "Score" TEXT, "1st Prize  (  $  ) " TEXT)

How many times could you earn $470,000 as the grand prize?
SELECT COUNT("Score") FROM table_2431 WHERE "1st Prize ( $ )" = '470,000'
SELECT COUNT("Score") FROM "table_2431" WHERE "1st Prize ( $ )" = '470,000'