I've been working on SeventeenOrBust for a long long time now. Our team 'TeamRetro' was for a long time in the top 5 producers. The project switched to PrimeGrid this year, and has finally (after 7+ years) found its next target prime. If you have CPU just idling away, think about joining the project. With enough CPUs, the next target won't take 7 years!
The Announcement