function for prime factors of an integer

John Cremona on Thu, 06 Aug 2015 13:58:08 +0200

function for prime factors of an integer

To: Pari gp users <pari-users@pari.math.u-bordeaux1.fr>
Subject: function for prime factors of an integer
From: John Cremona <john.cremona@gmail.com>
Date: Thu, 6 Aug 2015 12:57:31 +0100
Delivery-date: Thu, 06 Aug 2015 13:58:08 +0200
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I know various ways of getting a list of the prime factors of an integr N in two steps, such as

factor(N)[,1]~

whose syntax is a little obscure, but is there a cse for having a built-in gp function for this? If there is one I cannot find it...

John

Follow-Ups:
- Re: function for prime factors of an integer
  - From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>