Re: number of digits in n^p
- To: mathgroup at smc.vnet.net
- Subject: [mg60491] Re: number of digits in n^p
- From: Bill Rowe <readnewsciv at earthlink.net>
- Date: Sun, 18 Sep 2005 01:15:47 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On 9/16/05 at 3:48 AM, orangepi77 at yahoo.com (George) wrote: >i wonder if there is a formula, a function, or a method in >mathematica to know the number of digits in n raised to the power >of p without calculating the result, such as 67^89 will give us a >number with 163 digits in it, is there a way to know this result >without actually calculating 67^89 thanks George I think what you are looking for is Ceiling[n Log[10,p]] or using your particular case In[3]:=Ceiling[89*Log[10, 67]] Out[3]=163 -- To reply via email subtract one hundred and four