How many friends came to comfort Job?

Answer: 3

When Job's three friends heard about all the troubles that had come upon him.

“Now when Job’s three friends—Eliphaz the Temanite, Bildad the Shuhite, and Zophar the Naamathite—heard about all this adversity that had come upon him, each of them came from his home, and they met together to go and sympathize with Job and comfort him.”— Job 2:11 (BSB)