MangoldtLambda

MangoldtLambda[n] gives the von Mangoldt function Λ(n).

Examples

The von Mangoldt function for a prime power:

MangoldtLambda[8]
(* Log[2] *)

For a non-prime-power:

MangoldtLambda[6]
(* 0 *)

Please visit the official Wolfram Language Reference for more details.