I've received email from two different team members, saying that they received "unusual" email messages from me. I can assure you that I did not send these messages, and I took the step of changing my yahoo dot com address (the only one I've ever used on PrimeGrid) password a couple of weeks ago. If you get email purportedly from me, but not from yahoo, it is fake. Forging the "from" field in email is easy.
Someone's email address book has been hacked. I don't think it's me, because a lot of the addresses in the headers of the spam messages I do not recognize.
If you get an email from me, it will be from the yahoo dot com domain. I promise I never send messages about "male enhancement", dating Russian brides, or fake watches.
"I am he as you are he as you are me and we are all together"
87*2^3496188+1 is prime! (1052460 digits)
4 is not prime! (1 digit)