These numbers appear as point coordinates in the BIRCH2 dataset , which is a standard benchmark used to test data clustering algorithms.
Used in National Population Projections by the UK Office for National Statistics (ONS).
They are listed in large integer sets like the 1Mints.txt file from Princeton’s Algorithms course, used to teach efficient data processing. 📊 Public Records & Projections
Found in historical University of Notre Dame course schedules from the 1970s.
The two numbers (261304 and 480761) are frequently paired in datasets used for algorithm testing:
The numbers also appear in various government and institutional data tables:
