Timeline for Equation $\,\ N^d\pm 1\ =\,\ p_m\cdot\ldots\cdot p_n$

11 events

when toggle format	what		by	license	comment
Nov 10, 2020 at 6:57	comment	added	Wlod AA		@AlapanDas, nice, +1. #### There are also questions about related polynomials (I mean them as still devoted to the same number-theoretical questions; I don't mean to deviate away).
Nov 10, 2020 at 6:52	comment	added	Wlod AA		@GerryMyerson, I am terribly sorry for that frustrating (to me) misspelling!!!!!!
Nov 10, 2020 at 6:49	history	edited	Wlod AA	CC BY-SA 4.0	typo (in a name -- sorry!!!)
Nov 10, 2020 at 5:09	comment	added	Alapan Das		$1729=12^3+1=7×13×19=p_4p_6p_8$. So, it is an example of a more general case, where primes are in arithmetic progression $N^d±1=\prod\limits_{k=1}^{l}p_{m+ak}$.
Nov 9, 2020 at 19:48	history	edited	Wlod AA	CC BY-SA 4.0	near misses notion
Nov 9, 2020 at 12:44	comment	added	Wlod AA		Suddenly, I wonder about the English "a near miss". Shouldn't it be "a near hit"? (Hmmm, one can defend either of these phrases).
Nov 9, 2020 at 12:40	comment	added	Wlod AA		+1 and :-) too.
Nov 9, 2020 at 12:21	comment	added	Gerry Myerson		Here's a size 4 near miss: $18^4-1=13\times17\times19\times25$.
Nov 9, 2020 at 7:28	history	edited	Wlod AA	CC BY-SA 4.0	Logical (but strange?)
Nov 9, 2020 at 7:13	history	edited	Wlod AA	CC BY-SA 4.0	typo
Nov 9, 2020 at 7:06	history	asked	Wlod AA	CC BY-SA 4.0