Re: count zeros in a number
- To: mathgroup at smc.vnet.net
- Subject: [mg121818] Re: count zeros in a number
- From: dimitris <dimmechan at yahoo.com>
- Date: Tue, 4 Oct 2011 01:29:59 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <j69104$rda$1@smc.vnet.net>
On 2 =CF=EA=F4, 09:40, dimitris <dimmec... at yahoo.com> wrote: > Hello. > > Consider e.g. the number 24^24*55^55. > This number ends with exactly 55 zeros as the following demonstrate > > In[201]:= Mod[24^24*55^55, 10^55] > Mod[24^24*55^55, 10^56] > > Out[201]= 0 > Out[202]= 20000000000000000000000000000000000000000000000000000000 > > What I want now is a way to count the zeros that a number ends without > knowing in advance this number of zeros like in the above example. > > Thanks in advance. > Dimitris Thanks a lot to everyone that replied. Dimitris