A121106 - OEIS

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A121106

Trajectory of 6788 under "x -> product of digits of x" map.

6788, 2688, 768, 336, 54, 20, 0 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`This is the smallest number of persistence 6 (cf. A003001).`
	LINKS	`Table of n, a(n) for n=1..7.` `N. J. A. Sloane, The persistence of a number, J. Recreational Math., 6 (1973), 97-98.`
	MATHEMATICA	`NestList[Times@@IntegerDigits[#]&, 6788, 6] (* Harvey P. Dale, Nov 19 2021 *)`
	CROSSREFS	`Cf. A003001.` `Sequence in context: A031832 A200436 A250332 * A046515 A199996 A266847` `Adjacent sequences: A121103 A121104 A121105 * A121107 A121108 A121109`
	KEYWORD	`nonn,fini,full,base`
	AUTHOR	`N. J. A. Sloane, Aug 12 2006`
	EXTENSIONS	`Edited by Charles R Greathouse IV, Aug 06 2010`
	STATUS	`approved`

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Last modified December 7 01:49 EST 2023. Contains 367616 sequences. (Running on oeis4.)