My Math Forum  

Go Back   My Math Forum > College Math Forum > Number Theory

Number Theory Number Theory Math Forum


Reply
 
LinkBack Thread Tools Display Modes
February 27th, 2012, 10:56 AM   #1
Newbie
 
Joined: Feb 2012

Posts: 2
Thanks: 0

digital roots

The digital root of the product of the digital roots of the factors = the digital root of the product.

Does anyone know how to prove this?
mathfailer96 is offline  
 
August 10th, 2014, 09:48 AM   #2
Global Moderator
 
Joined: Dec 2006

Posts: 19,189
Thanks: 1648

Yes, I know. Hint: convert to base 9.
skipjack is offline  
Reply

  My Math Forum > College Math Forum > Number Theory

Tags
digital, roots



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
A puzzle problem of digital root nine rubis Number Theory 2 January 22nd, 2014 09:31 PM
Digital Signal Processing hexadecimal Academic Guidance 2 January 29th, 2013 10:16 AM
Phase response of digital filters cantrell Real Analysis 0 May 1st, 2011 11:29 PM
Digital Root Question Mysty Number Theory 0 April 18th, 2010 12:33 PM
Digital Signal Processing hexadecimal Algebra 0 December 31st, 1969 04:00 PM





Copyright © 2018 My Math Forum. All rights reserved.