Bereshis 5:10

10 And Enosh lived after he fathered Kenan eight hundred and fifteen shanah, and fathered banim and banot;

Bereshis 5:10 Meaning and Commentary

Genesis 5:10

And Enos lived, after he begat Cainan, eight hundred
and fifteen years
The Septuagint version is seven hundred and fifteen; the hundred which is wanting is to be supplied from the preceding verse, which in that version has an hundred too much: and begat sons and daughters;
others besides Enos, as very likely he had before he was born.

Bereshis 5:10 In-Context

8 And all the days of Shet were nine hundred and twelve shanah; and he died.

9 And Enosh lived ninety shanah, and fathered Kenan;

10 And Enosh lived after he fathered Kenan eight hundred and fifteen shanah, and fathered banim and banot;

11 And all the days of Enosh were nine hundred and five shanim; and he died.

12 And Kenan lived seventy shanah and fathered Mahalal’el;