From: Jari Williamsson <jari.williamsson@...>
Date: 2008-02-16T07:41:47+09:00
Subject: Re: Finding smallest integer division?

Robert Klemme wrote:
> On 15.02.2008 19:49, Jari Williamsson wrote:
>> In Ruby, what would be the most efficient way to find the smallest 
>> number that an array of different numbers can be divided by with 
>> integer math?
>>
>> For example:
>> [1,2] would return 2
>> [1,2,3] would return 6
>> [1,2,4] would return 4
>> [1,2,3,4] would return 12
> 
> Somehow your wording puzzles me: you write that you look for the 
> smallest number that an array can be divided by but yet you rather seem 
> to be looking for the smallest number that can be divided by all numbers 
> in the array.  I think Rob is spot on with his suggestion.

Yepp, I got it reversed. Using inject and lcm worked great!


Best regards,

Jari Williamsson