The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A046507 Primes with multiplicative persistence value 7. 3
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Multiplicative Persistence
EXAMPLE
186889 -> [ 27648 ][ 2688 ][ 768 ][ 336 ][ 54 ][ 20 ][ 0 ] -> one digit in seven steps.
CROSSREFS
Sequence in context: A253293 A253163 A185775 * A151422 A250541 A251798
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Sep 15 1998
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 25 23:35 EDT 2024. Contains 372806 sequences. (Running on oeis4.)