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


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function for prime factors of an integer


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