We should also include the prophets from the Books of Samuel and Kings–these books are called by the Jews the “Former Prophets”. Samuel seems to be the first named prophet, especially from his experience of being called in 1 Samuel 3, when “the word of the LORD was scarce and vision infrequent.” We would also include Elijah, Elisha, and others like Gad and Nathan, and Hulda.
And then there is Joseph, who certainly had some of the qualities of a prophet. And Moses, who by all accounts was a prophet. Even Miriam is called a prophet in Exodus 15:20. Judges 4 has Deborah as judge of Israel, and prophet (4:4).
So, who was the first prophet? Moses, or even Joseph the patriarch.
Who was the greatest prophet? Moses, or perhaps Elijah.
Who was the final prophet? We don’t know. Malachi is the last in the bible, but we don’t really know the prophet’s name, or even gender.