2的80次方是多少?要求:
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∵2^2=4
∴2^4=(2^2)^2=4^2=16
∵2^4=16
∴2^8=(2^4)^2=16^2=256
……∵2^40=(2^20)^2=1048576^2=1099511627776
∴2^80=(2^40)^2=1099511627776^2=1208925819614629174706176
======以下答案可供参考======
供参考答案1:
2^80=1024^8=1048576^4=1099511627776^2
=1208925819614629174706176