Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!linus!decvax!harpo!gummo!whuxlb!pyuxll!eisx!npoiv!npois!hogpc!houxm!5941ux!dje
From: dje@5941ux.UUCP
Newsgroups: net.math
Subject: Re: interesting division by 3 property
Message-ID: <376@5941ux.UUCP>
Date: Thu, 25-Aug-83 09:42:05 EDT
Article-I.D.: 5941ux.376
Posted: Thu Aug 25 09:42:05 1983
Date-Received: Thu, 25-Aug-83 21:40:51 EDT
References: ecn-ed.175
Lines: 5

pur-ee!vu stated that an integer is divisible by 11 if the sum of the digits in
odd positions and the sum of the digits in even positions are equal (e.g. 781, 
2585).  This is not the complete test:  consider the number 814, which is 
divisible by 11.  The odd-digits sum is 12 and the even-digits sum is 1.  
The correct rule is that the two digit-sums must differ by a multiple of 11.