1:7 increased abundantly. Populations can grow very rapidly under favorable conditions. For example, the seventy who came into Egypt could easily have multiplied to over five million in just ten generations, assuming only that the average family had six children who lived and reproduced, and that only two generations were living contemporaneously, at any one time. This was only half the size of Jacob’s original family. Even an average family size of four would generate a population of over 100,000 in ten generations.