Monday, April 09, 2012

[ibccdhpr] Substrings of a number

What is the next number in this sequence: 446, 744, 73, ___

These are consecutive digits in the decimal representation of 2^64.  In general, how difficult is this problem?  Given groups of consecutive digits of 2^n in base b then converted to base 10, identify n.

(Answer: 709)

No comments :