18745...74563 (127-digits)
This number is a prime.
1874563 2901874563 2901874563 2901874563 2901874563 2901874563
2901874563 2901874563 2901874563 2901874563 2901874563 2901874563 2901874563
Just showing those entries submitted by 'Gaydos': (Click here to show all)
The concatenation of the rightmost digits of the first 127
cubes is a prime number. The shortest such case. [Gaydos]
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