Archimedes was a famous mathematician, engineer and physicist in ancient Greece. At that time he played chess with the king. The king asked an interesting question and asked to fill 64 squares with rice grains. Archimedes explained to the king that if you put a grain of rice in the first square, two grains of rice in the second square, four grains of rice in the third square, and so on, then the number of meters you need to put in the 64th square is 2 to the 63rd power.

This applies to the mathematical principle of multiplication, that is, the second number is several times the first number, and the third number is several times the second number. The numbers are growing in geometric multiples, getting bigger and bigger.