The Life of Arpachshad

• Arpachshad

• Start — Genesis 11:10. The year of Arpachshad's birth is the year his father, Shem, was born (1560) + the age of his father at Arpachshad's birth (100) = 1660. (This is also TWO years after the Flood ended (1658+2) = 1660)
• End — Genesis 11:13. The year of Arpachshad's death is the year his son, Shelah (son of Arpachshad), was born (1695) + the years Arpachshad lived after his son's birth (403) = 2098

Shem was 100 years old when Arpachshad was born... two years after the Flood.

Years are anno hominis — counted from Creation as year 1 — which is the frame the source computes in. The arithmetic behind each boundary is given above rather than assumed.