Is 8 x 10^67 greater than 10^70
Notice that.....
8 x 1067 < 10 x 1067 < (10 x 1069 = 1070 )
8 x 10^67 < 10 X 10^67 = 10^68
Since 10^68 < 10^70, 8 x 10^67 < 10^70