A046507 Primes with multiplicative persistence value 7.

186889, 188869, 246889, 248869, 264889, 269779, 279679, 279967, 284689, 288389, 288649, 288839, 296797, 297967, 376679, 376769, 377779, 379667, 379777, 426889, 444869, 467879, 467897, 468289, 468683, 469787, 469877, 478679, 478697, 478769

Offset

1,1

Links

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

Eric Weisstein's World of Mathematics, Multiplicative Persistence

Example

186889 -> [ 27648 ][ 2688 ][ 768 ][ 336 ][ 54 ][ 20 ][ 0 ] -> one digit in seven steps.

Crossrefs

Cf. A046500, A046516.

Sequence in context: A253293 A253163 A185775 * A151422 A250541 A251798

Adjacent sequences: A046504 A046505 A046506 * A046508 A046509 A046510

Keyword

nonn,base

Author

Patrick De Geest, Sep 15 1998

Status

approved