The King's Factor takes place is room S5.20 of the Strand Campus of King's College London.
The room is on the fifth floor of the Strand building. To find it enter the main lobby of the campus from The Strand and take the lift to the fifth floor. Turn left upon exit and follow the yellow signs to room S5.20.
Directions to the Strand campus can be found here.
The full address of the building is:
King's College London,
The Strand,
London WC2R 2LS.