Genesis 5:10

10 After he became the father of Kenan, Enosh lived 815 years and had other sons and daughters.

Read Genesis 5:10 Using Other Translations

And Enos lived after he begat Cainan eight hundred and fifteen years, and begat sons and daughters:
Enosh lived after he fathered Kenan 815 years and had other sons and daughters.
After the birth of Kenan, Enosh lived another 815 years, and he had other sons and daughters.