Category:Multiplicative Persistence

From ProofWiki
Jump to: navigation, search

This category contains results about Multiplicative Persistence.
Definitions specific to this category can be found in Definitions/Multiplicative Persistence.


Let $n \in \N$ be a natural number.

Let $n$ be expressed in decimal notation.

Multiply the digits of $n$ together.

Repeat with the answer, and again until a single digit remains.


The number of steps it takes to reach $1$ digit is called the multiplicative persistence of $n$.