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2025 had a bunch of bits of fun mathematical trivia: 45² = 45 x 45 = 2025 Also, 9² x 5² = 2025 40² + 20² + 5² = 2025 My favourite? 1³+2³+3³+4³+5³+6³+7³+8³

• thomaswc 9mo ago
  Ha! I really should have known that last one, given that I once wrote a paper about the sum of cubes. https://dl.acm.org/doi/abs/10.5555/1378446.1378486 https://dl.acm.org/doi/abs/10.5555/1378446.1378486