I recall someone suggesting to me one time that Adam and Eve had a total or twenty of so children, and that this came from some Jewish writings. Is there any indication, then, from history regarding how many children they had?
It seems they would have likely had at least seven, as Cain, Abel and Seth are named. Seth was considered to be in place of Abel, and it is said that after Seth, Adam and Eve had other sons (plural) and daughters (plural). Thus, Cain (1) + Abel (1) + Seth (1) + other sons (2+) and daughters (2+) would equal at least seven children.
And Adam knew his wife again, and she bore a son and called his name Seth, for she said, “God has appointed for me another offspring instead of Abel, for Cain killed him. Genesis 4:25 ESV
The days of Adam after he fathered Seth were 800 years; and he had other sons and daughters. Genesis 5:4 ESV
So, again, is there any indication from tradition or historical writings regarding how many sons and daughters Adam and Eve had altogether?