2 Kings 2:7

Then fifty men from the sons of the prophets went and stood opposite [them] at a distance while the two of them stood by the Jordan.

1 Kings 18:4

It had happened that when Jezebel killed the prophets of Yahweh, Obadiah took a hundred prophets and hid them {by fifties} in the cave and sustained them [with] food and water.)

1 Kings 18:13

Has it not been told to my lord what I did when Jezebel killed the prophets of Yahweh? I hid a hundred men of the prophets of Yahweh {by fifties} in the cave, and I sustained them [with] food and water.

2 Kings 2:17

But they urged him until embarrassing [him], so he said, "Send them." So they sent fifty men, and they looked for three days, but they could 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
But they urged him until embarrassing [him], so he said, "Send them." So they sent fifty men, and they looked for three days, but they could not find him.
1 Kings 18:4
It had happened that when Jezebel killed the prophets of Yahweh, Obadiah took a hundred prophets and hid them {by fifties} in the cave and sustained them [with] food and water.)