2879

Number
$2879$ (two thousand, eight hundred and seventy-nine) is:


 * The $417$th prime number.


 * The $6$th and last term after $89$, $179$, $359$, $719$, $1439$ of the smallest Cunningham chain of the first kind of length $6$:
 * $\left({89, 179, 359, 719, 1439, 2879}\right)$