You know that this line is gobbledygook right? 257885161 − 1 is a quite large prime number (57,885,161 digits). It cannot help you crack someone's message unless they are stupidly using that particular fairly well known (in some circles) prime number.
They have a chip plant that is amazing and they do not use brute force computers to crack codes or messages.
This is a silly assertion completely lacking in evidence.
Offer some proof and perhaps you'll be believed.
need a change of sig.