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Jan 9, 2026
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2 changes: 1 addition & 1 deletion gathering/uk/archive/2025/index.md
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Expand Up @@ -403,7 +403,7 @@ This is a list of talks which were given at the 2025 MathsJam Gathering, includi
Matthew Scroggs: 2025 squares
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2025 is the sum of the first 9 cube numbers and also the square of the sum of the first nine numbers. You can represent this fact by arranging one 1 by 1 square, two 2 by 2 squares, three 2 by 2 squares, and so on up to nine 9 by 9 squares inside a 45 by 45 square. This talk looked at the general puzzle involving the sum of the first n cubes, showing that it's possible to do the arrangement for n=1, n=8 and n=9, but not possible for 2 to 7, and showed off <a href="https://www.mscroggs.co.uk/squares/">the interactive thing that Scroggs made</a>.
2025 is the sum of the first 9 cube numbers and also the square of the sum of the first nine numbers. You can represent this fact by arranging one 1 by 1 square, two 2 by 2 squares, three 3 by 3 squares, and so on up to nine 9 by 9 squares inside a 45 by 45 square. This talk looked at the general puzzle involving the sum of the first n cubes, showing that it's possible to do the arrangement for n=1, n=8 and n=9, but not possible for 2 to 7, and showed off <a href="https://www.mscroggs.co.uk/squares/">the interactive thing that Scroggs made</a>.
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