211
This number is a prime.
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The smallest prime which is a cubic happy number. If
repeating the process of taking the sums of the cubes of
the digits of an integer eventually terminates in 1, then
that integer is termed a cubic happy number. [Gupta]
Submitted: 2025-05-03 14:38:55; Last Modified: 2025-05-03 14:40:44.
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