Tuesday, April 10, 2012

Compute 2^128 -- no computer and possibly no paper

can you just compute it in your mind?

1 comment:

  1. We know from32-bit programming that 2^32 is about 4.10^9 (4 billions).

    So
    2^128 = (2^32)(2^32)(2^32)(2^32) \simeq (4.10^9)(4.10^9)(4.10^9)(4.10^9) \simeq 256.10^36.

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