2的80次方是多少?要求:有过程有得数!
∵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
∵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