Why September 27, 2025 Is the 'coolest Mathematical Date of Our Lifetime'
Posted3 months agoActive3 months ago
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The article discusses why September 27, 2025 is considered the 'coolest mathematical date of our lifetime' due to its unique numerical properties, and the HN discussion touches on the interesting aspects of this date.
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Discussion (2 comments)
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robthebrew
3 months ago
1 replyAnd for everyone other than Americans it is not important. We use the logical day:month:year format
TowerTall
3 months ago
From TFA: But wait, there’s more! As you probably know, people in some countries write their dates out with the day before the month. In that case, 27 September, 2025 would be 27/09/2025. If we run the same trick as before, 27/09/2025 turns into 27,092,025. Lo and behold, that is the square of 5,205—5205 times 5205 is 27,092,025.
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ID: 45387163Type: storyLast synced: 11/17/2025, 1:16:43 PM
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