A unit inch cube of Aluminium contains around 10²4 = 1,000,000,000,000,000,000,000,000 = a trillion times trillion atoms of Aluminium.
Now to know how much a trillion is , image a grain of a sand as a single atom.If u have a whole large truck loaded full of sand grains then that equals to a trillion sand grains. Now if you gather trillion more trucks like that, then that will give you a trillion times trillion sand grains.
That is a really big number you can find only in an inch cube of matter.
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