Quantum Computer Factors Numbers, Could be Scaled Up

Researchers report that they have designed and built a quantum computer from five atoms in an ion trap. The computer uses laser pulses to carry out Shor's algorithm on each atom, to correctly factor the number 15. The system is designed in such a way that more atoms and lasers can be added to build a bigger and faster quantum computer, able to factor much larger numbers.
http://www.sciencedaily.com/releases/2016/03/160303145730.htm