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Please-any-note-on-how-to-find-the-first-digit-first-two-digit-and-first-three-digits-of-any-power-




Question Number 46576 by Tawa1 last updated on 28/Oct/18
Please any note on how to find the first digit, first two digit and first three digits  of any power
$$\mathrm{Please}\:\mathrm{any}\:\mathrm{note}\:\mathrm{on}\:\mathrm{how}\:\mathrm{to}\:\mathrm{find}\:\mathrm{the}\:\mathrm{first}\:\mathrm{digit},\:\mathrm{first}\:\mathrm{two}\:\mathrm{digit}\:\mathrm{and}\:\mathrm{first}\:\mathrm{three}\:\mathrm{digits} \\ $$$$\mathrm{of}\:\mathrm{any}\:\mathrm{power} \\ $$
Commented by hassentimol last updated on 30/Oct/18
  I′m not sure at all but I think that, according  to what I know, the only way is to work out,   to calculate the entire exponentiation.  I don′t think there is other way which let   know the first(s) digit(s) of a power !
$$ \\ $$$$\mathrm{I}'\mathrm{m}\:\mathrm{not}\:\mathrm{sure}\:\mathrm{at}\:\mathrm{all}\:\mathrm{but}\:\mathrm{I}\:\mathrm{think}\:\mathrm{that},\:\mathrm{according} \\ $$$$\mathrm{to}\:\mathrm{what}\:\mathrm{I}\:\mathrm{know},\:\mathrm{the}\:\mathrm{only}\:\mathrm{way}\:\mathrm{is}\:\mathrm{to}\:\mathrm{work}\:\mathrm{out},\: \\ $$$$\mathrm{to}\:\mathrm{calculate}\:\mathrm{the}\:\mathrm{entire}\:\mathrm{exponentiation}. \\ $$$$\mathrm{I}\:\mathrm{don}'\mathrm{t}\:\mathrm{think}\:\mathrm{there}\:\mathrm{is}\:\mathrm{other}\:\mathrm{way}\:\mathrm{which}\:\mathrm{let}\: \\ $$$$\mathrm{know}\:\mathrm{the}\:\mathrm{first}\left(\mathrm{s}\right)\:\mathrm{digit}\left(\mathrm{s}\right)\:\mathrm{of}\:\mathrm{a}\:\mathrm{power}\:! \\ $$
Commented by Tawa1 last updated on 30/Oct/18
God bless you sir
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$

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