The largest painting by numbers measures 3,717 m² (40,009.29 ft²) and was created at the Punjab Youth Festival in Lahore, Punjab, Pakistan, on 14 March 2013.
The painting was 45.72 m (150 ft) X 81.3 m (266 ft 8 in) and represented some of the most popular monuments of the Punjab region in Pakistan. 1,557 participants contributed to the work. It took 3 hours to create the starting image and 3 more hours to paint it.
Comments below may relate to previous holders of this record.