[seqfan] Re: A245486

Don Reble djr at nk.ca
Thu Jul 24 07:55:33 CEST 2014


> https://oeis.org/draft/A245486
> Greatest prime factor of n times greatest prime factor of n+1.

> 1) ...each member of A006881 (products of 2 distinct primes) occurs
>    only finitely many times. Can someone confirm this?

    It's true. See A002072 and its references.

-- 
Don Reble  djr at nk.ca




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