Re: count zeros in a number
- To: mathgroup at smc.vnet.net
- Subject: [mg121814] Re: count zeros in a number
- From: Gabriel Landi <gtlandi at gmail.com>
- Date: Mon, 3 Oct 2011 04:23:43 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <201110020636.CAA28027@smc.vnet.net>
num = Mod[24^24*55^55, 10^56]; Count[IntegerDigits@num, 0] This is the simplest way I found. On Oct 2, 2011, at 3:36 AM, dimitris 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 >
- References:
- count zeros in a number
- From: dimitris <dimmechan@yahoo.com>
- count zeros in a number