The Surprisingly Sad Number #shorts
Vsauce2
Jan 31, 2022 16:47
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Some numbers are happy. Some numbers are sad. How can you tell the difference?!
It's actually really easy. Square the number, then square the resulting digits and add them together. Do it again and again... if you get to 1, that number is happy. And if you can't get to 1, the number is stuck in an eternal abyss of sadness and misery.
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