A121109 Trajectory of 26888999 under "x -> product of digits of x" map.

26888999, 4478976, 338688, 27648, 2688, 768, 336, 54, 20, 0

Offset: 1

Author

N. J. A. Sloane, Aug 12 2006

Keywords

• nonn
• fini
• full
• base

Comments

This is the smallest number of persistence 9 (cf. A003001).

Links

• N. J. A. Sloane, The persistence of a number, J. Recreational Math., 6 (1973), 97-98.

Crossrefs

Cf. A003001.

Programs

Mathematica

NestList[Times@@IntegerDigits[#]&,26888999,9] (* Harvey P. Dale, Aug 16 2015 *)

Extensions

Edited by Charles R Greathouse IV, Aug 06 2010