Many have done the math and have figured out that it is possible that Shem, Ham, Japheth and their wives could have repopulated the earth, keeping in mind that when their sons and daughters were of child bearing age that they would be included in repopulating the earth. Another fact to be considered is that up until this point in the bible, it mentions that men have lived up to about 1,000 years. We must assume that this is the case for women as well. This also implies that women would have had the ability to bear children much longer than is currently possible. So it would have been possible for Noah’s sons and their offspring to repopulate the earth.
