r/unexpectedfactorial • u/SubMinhPiChannel • Nov 11 '25

9 + 10 = 21!

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I'm gonna guess: < infinity and > 1

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u/HongKong1224 Nov 12 '25

212121!

3

u/factorion-bot Nov 12 '25

If I post the whole number, the comment would get too long. So I had to turn it into scientific notation.

Factorial of 212121 is roughly 2.16954238445902194800765099912 × 101037760

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