Oh *&^*&^
The sound of a million cryptographers screaming:
Physicists perform the first ever quantum calculation Quantum Computing calculates prime factors of 15.
(Yes, it's an easy question - 3 & 5. It also forms the basis of all current public key encryption systems.. aka what we use to make all secure communications on the internet. They just need to add qubits to the calculator. Probably not easy... and will take a few years.. but ...