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Vibhor16 Group Title

Is there an easy way to mentally calculate 2^n (where n can be any natural no.)?

  • 2 years ago
  • 2 years ago

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  1. experimentX Group Title
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    memory 1 2 4 8 16 32 64 128 256 512 1024 ...

    • 2 years ago
  2. shayanreloaded Group Title
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    1?

    • 2 years ago
  3. experimentX Group Title
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    2^0

    • 2 years ago
  4. shayanreloaded Group Title
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    0 is not a natural no

    • 2 years ago
  5. experimentX Group Title
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    some include 0 as natural number while some do not http://en.wikipedia.org/wiki/Natural_number

    • 2 years ago
  6. Vibhor16 Group Title
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    what about 54,55,56,... you can't just memories them all !

    • 2 years ago
  7. experimentX Group Title
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    lol http://en.wikipedia.org/wiki/Pi#Memorizing_digits

    • 2 years ago
  8. experimentX Group Title
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    the best way is to memorize up to 2^10 ... or 2^something ... then multiply it by two until your you get your result.

    • 2 years ago
  9. radar Group Title
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    Use the calculator \[x ^{y}\] button.

    • 2 years ago
  10. shayanreloaded Group Title
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    why would you ever need 2^54 or something that large?

    • 2 years ago
  11. experimentX Group Title
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    haha ... agree with radar!!

    • 2 years ago
  12. radar Group Title
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    I realize that is not really a "mentally" way, but when you get above 2^7 that would be the way I would do it mentally.

    • 2 years ago
  13. radar Group Title
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    use the tools.

    • 2 years ago
  14. SMISHRA Group Title
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    @experimentX , 0 can not be an element of N.

    • 2 years ago
  15. experimentX Group Title
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    I looked into wikipedia .... it said that 0 is still debated as it is an element of N or not

    • 2 years ago
  16. experimentX Group Title
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    besides ... the question hardly focuses on 0 is a natural number or not ... and i'm in no position to argue that

    • 2 years ago
  17. satellite73 Group Title
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    any natural number at all? seems doubtful since this grows very large very fact. but i count on my fingers, doubling each time two four eight sixteen thirty two sixty four one twenty eight two fifty six five twelve ten twenty four it helps to be old an remember when a computer actually came with one twenty eight two fifty six or five twelve megs, so those numbers are familiar.

    • 2 years ago
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