I don't know if this warning message is important or not but am seeking advice here. When I run LLRnet it logs on to the server to start a job and displays this:

Working on: 258317/16879535 [1000000000:P:0:2:257]
Warning: LLR test only k*2^n-1 numbers, so, PRP is used for the other tests.
258317*2^16879535+1, bit: 17400/1687953 (1.03%). Time per bit: 30.031 ms.

The task is allocated by the LLRnet server so why did it give me a n+1 number if LLR tests are n-1 numbers? Seems weird to me.