Genesis 5:13

13 And after the birth of Mahalalel, Kenan went on living for eight hundred and forty years, and had sons and daughters:

Genesis 5:13 Meaning and Commentary

Genesis 5:13

And Cainan lived, after he begat Mahalaleel, eight hundred
and forty years
The Septuagint has seven hundred and forty, which, added to the years given him before, makes the same sum:

and begat sons and daughters;
as his progenitors did.

Genesis 5:13 In-Context

11 And all the years of Enosh were nine hundred and five: and he came to his end.

12 And Kenan was seventy years old when he became the father of Mahalalel:

13 And after the birth of Mahalalel, Kenan went on living for eight hundred and forty years, and had sons and daughters:

14 And all the years of Kenan's life were nine hundred and ten; and he came to his end.

15 And Mahalalel was sixty-five years old when he became the father of Jared: