3229
This number is a prime.
Single Curio View: (Seek other curios for this number)
The sum of the first n positive integers that have no
unique digits is the prime number 423765809 for n=3229, the
largest n with this property. [Gaydos]
Submitted: 2025-12-25 12:38:27; Last Modified: 2025-12-25 15:06:22.
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