Tuesday, 29 October 2013

Let N be the greatest integer multiple of 8

Let N be the greatest integer multiple of 8, no two of whose digits are the same. What is the remainder
when N is divided by 1000?

No comments:

Post a Comment

Define f:RR by \[f(x)= \begin{cases}(1-\cos x) \sin \left(\frac{1}{x}\right), & x \neq 0 \ 0, ...