29 Mar
2013
29 Mar
'13
8:16 p.m.
Oops, that's wrong. Using this representation, 108 = 107 + 1. An actual example of the type of cases not counted in the query below would be 28 = 4*7. --Dan -------------------------------------- On 2013-03-29, at 7:04 PM, Dan Asimov wrote:
* What is the first case having a term K*2^r with r >= 1 (other than powers of 2 themselves) ? (This is not counting terms of the form K*p^r where p > 2 and K is a power of 2, such as 108 = 4*3^3.)