A046509 Primes with multiplicative persistence value 9.

26899889, 28698899, 28699889, 28869989, 28889699, 28899869, 28989689, 29868989, 29888699, 29968889, 29988869, 38849989, 38894899, 38898949, 38899489, 38984989, 39849889, 43898989, 43988899, 43989889, 46668899

Offset

1,1

Links

Daniel Mondot, Table of n, a(n) for n = 1..10000

Eric Weisstein's World of Mathematics, Multiplicative Persistence

Example

26899889 -> [ 4478976 ][ 338688 ][ 27648 ][ 2688 ][ 768 ][ 336 ][ 54 ][ 20 ][ 0 ] -> one digit in nine steps.

Crossrefs

Intersection of A000040 and A046518.

Cf. A046500.

Sequence in context: A121109 A046518 A199999 * A327281 A251806 A184670

Adjacent sequences: A046506 A046507 A046508 * A046510 A046511 A046512

Keyword

nonn,base

Author

Patrick De Geest, Sep 15 1998

Status

approved