id:A028843 - OEIS Search Results

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Numbers n such that iterated product of digits of n is a prime.

+0
3

2, 3, 5, 7, 12, 13, 15, 17, 21, 26, 31, 34, 35, 37, 43, 51, 53, 57, 62, 71, 73, 75, 112, 113, 115, 117, 121, 126, 131, 134, 135, 137, 143, 151, 153, 157, 162, 171, 173, 175, 211, 216, 223, 232, 261, 278, 279, 287, 297, 299, 311, 314, 315, 317, 322, 341, 351, 355 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`E.g. 53 -> 53 = 15 -> 15 = 5 is a prime.`
	CROSSREFS	`Cf. A031347, A028842, A028835.` `Sequence in context: A114983 A118950 A092620 this_sequence A028842 A073689 A031216` `Adjacent sequences: A028840 A028841 A028842 this_sequence A028844 A028845 A028846`
	KEYWORD	`nonn,base`
	AUTHOR	`njas`
	EXTENSIONS	`More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1999.` `Corrected by Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Jan 17 2007`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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