Definition:Multiplicative Persistence/Examples

Examples of Multiplicative Persistence

10

$10$ is the smallest positive integer which has a multiplicative persistence of $1$.

25

$25$ is the smallest positive integer which has a multiplicative persistence of $2$.

39

$39$ is the smallest positive integer which has a multiplicative persistence of $3$.

77

$77$ is the smallest positive integer which has a multiplicative persistence of $4$.

679

$679$ is the smallest positive integer which has a multiplicative persistence of $5$.

$277 \, 777 \, 788 \, 888 \, 899$

$277 \, 777 \, 788 \, 888 \, 899$ is the smallest positive integer which has a multiplicative persistence of $11$.