roughly 100 years.
Isaiah, Jeremiah, Ezekiel, and many more
Isaiah, with its 66 chapters.
The major prophets in the bible are Isaiah, Daniel, Samuel, Jeremiah and Ezekiel. Note that Samuel is not considered a "major prophet" by most scholars and Daniel is not part of the Major Prophet books in the Hebrew Bible.
The Prophet Isaiah is attributed to writing only one book in the Canonized Bible (the bible with 66 Books and Old & New testament divisions), the Book of Isaiah.
850 years
The phrase "Here I am, Lord" is mentioned twice in the Bible. It appears in the Old Testament book of 1 Samuel, where the prophet Samuel responds to God's call (1 Samuel 3:4) and in the book of Isaiah, where Isaiah volunteers to be sent as a prophet by God (Isaiah 6:8).
Isaiah prophesied about Cyrus around 150 years before Cyrus' reign.
Isaiah the prophet lived in Jerusalem which was the chief area of his ministry. He wrote the Book of Isaiah over a period of time during this ministry. This time period is recorded as being during the reigns of Uzziah, Jotham, Ahaz and Hezekiah. That is between c. 740 BC until c.700 BC. The word of the Lord came to Hosea during the time of Isaiah and also to Amos; also to Micah.
27 years
Israel was not in captivity while the prophet Isaiah was alive. Isaiah prophesied during a time when the kingdom of Judah was facing threats of invasion from neighboring powers, including the Assyrian Empire. It was not until after Isaiah's death that Judah was eventually conquered and taken into captivity by the Babylonians in 586 BC.
Although the exact date is unknown, an estimation can be made. Isaiah was a prophet to 4 successive kings of Judah: Uzziah, Jotham, Ahaz, and Hezekiah.Isa 1:1 The vision of Isaiah the son of Amoz, which he saw concerning Judah and Jerusalem in the days of Uzziah, Jotham, Ahaz, and Hezekiah, kings of Judah.Uzziah reigned for 52 years from 790-739BC, but he was struck with leprousy by God as punishment for trying to usurp the duties of the priests unto himself. This meant he was not allowed public contact, and his son Jotham therefore had to become king. Jotham ruled 750-731BC, so the latest possible year Isaiah could have been a prophet to Uzziah before the co-regency with Jotham is 749BC. Tradition says that Isaiah was cut in two with a wooden saw while he was hiding in a tree-trunk by troops of King Manasseh (695-642BC), so the earliest possible date for his death is 695BC. This makes the minimum time period possible for Isaiah's prophetic life 749-695BC, or 44 years. It is safe to assume he was 30 when he started, because (many years later) the Pharisees would not allow anyone to be a rabbi or a member of the Sanhedrin until they were 30. This would make him a minimum of 74 years old when he died, which is a credible age, and would make the latest Isaiah could be born around about 770BC. (Since the actual date is unknown all this is based on assumptions, but you have to start somewhere).
Some Jewish prophets include Abraham, Moses, Joshua, Samuel, Isaiah, Jeremiah, Ezekiel, Hosea, and many others.