"Factory Records was a Manchester based British independent record label, started in 1978 by Tony Wilson and Alan Erasmus. The record label's three biggest bands have been Joy Division, New Order and Happy Mondays,
Factory Records used a creative team which gave the label, and the artists recording for it, a particular sound and image. The label employed a unique cataloguing system that gave a number not just to its musical releases, but to artwork and other objects." Quoted from Wikipedia entry on Factory Records
The Rest of Them:
Compared to other record labels, FR did things differently when it came to their products and instead created a eccentric catalog system. Instead of running chronologically different bands had their own number, for example Happy Monday's releases usually had a catalog number ending in a 2. Every aspect of FR had its own number, FAC01 is a poster advertising a club night. FAC61 was the number given to a law suit brought against the label by former partner Hannett. FAC501, the final catalogue number, was given to Tony Wilson's coffin.
A semi-fictional account of the story of Factory Records was depicted in the film 24hr Party People in 2002.