2 Kings 2:7

And fifty men of the sons of the prophets went and stood opposite afar off; and they two stood by the Jordan.

1 Kings 18:4

and it was so, when Jezebel cut off the prophets of Jehovah, that Obadiah took a hundred prophets, and hid them by fifty in a cave, and maintained them with bread and water);

1 Kings 18:13

Was it not told my lord what I did when Jezebel slew the prophets of Jehovah, how I hid a hundred men of Jehovah's prophets by fifty in a cave, and maintained them with bread and water?

2 Kings 2:17

And they pressed him till he was ashamed, and he said, Send. They sent therefore fifty men, and they sought three days, but did not find him.

Treasury of Scripture Knowledge

Summary

And fifty men of the sons of the prophets went, and stood to view afar off: and they two stood by Jordan.

Bible References

Fifty men

2 Kings 2:17
And they pressed him till he was ashamed, and he said, Send. They sent therefore fifty men, and they sought three days, but did not find him.
1 Kings 18:4
and it was so, when Jezebel cut off the prophets of Jehovah, that Obadiah took a hundred prophets, and hid them by fifty in a cave, and maintained them with bread and water);