Re: [math-fun] Multiply my digits

6 terms: [6, 32, 48, 168, 27216, 666792] 7 terms: [20, 54, 336, 768, 2688, 27648, 826686] altermative 7 terms: [20, 54, 336, 768, 2688, 27648, 2239488] 8 terms: [20, 54, 336, 768, 2688, 27648, 338688, 4478976] Obtained using Maple's GraphTheory Package. I think this is the best one can do using only 7-smooth numbers <http://oeis.org/A002473> up to 10 million On Fri, Jul 26, 2019 at 2:30 AM Éric Angelini <eric.angelini@skynet.be> wrote:

5 terms (with my smartphone)! 6,16,144,1944,3899,... Best, É.

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