CREATE TABLE table_13784 ("Rank" FLOAT, "Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

What is the least number of gold medals won among nations ranked 1 with no silver medals?
SELECT MIN("Gold") FROM table_13784 WHERE "Rank" = '1' AND "Silver" < '1'
SELECT MIN("Gold") FROM "table_13784" WHERE "Rank" = '1' AND "Silver" < '1'