How old was Joseph when Benjamin was born?

Joseph was 17 years old when he was sold into slavery, which is when the events concerning his family begin to unfold in the biblical narrative. Benjamin, the youngest son of Jacob and Rachel, was born after Joseph's departure to Egypt. According to the timeline in The Bible, Joseph was likely around 30 years old when he first encountered his brothers in Egypt, meaning he would have been about 13 years old when Benjamin was born.