pentēkonta

(Translation from NRSV)

Mark

6: 40

So they sat down in groups of hundreds and of fifties (pentēkonta).

Luke

7: 41	"A certain creditor had two debtors; one owed five hundred denarii, and the other fifty (pentēkonta).
9: 14	For there were about five thousand men. And he said to his disciples, "Make them sit down in groups of about fifty (pentēkonta) each."
16: 6	He answered, 'A hundred jugs of olive oil.' He said to him, 'Take your bill, sit down quickly, and make it fifty (pentēkonta).'

John

8: 57	Then the Jews said to him, "You are not yet fifty (pentēkonta) years old, and have you seen Abraham?"
21: 11	So Simon Peter went aboard and hauled the net ashore, full of large fish, a hundred fifty (pentēkonta)-three of them; and though there were so many, the net was not torn.

Acts

13: 20

for about four hundred fifty (pentēkonta) years. After that he gave them judges until the time of the prophet Samuel.