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22222...22299 (19153-digits) (just those submitted by Rupinski) |
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Just showing those entries submitted by 'Rupinski': (Click here to show all) 
The largest minimal 4k+3 prime, i.e., a prime of the
form 4k+3 such that deleting any number of its
digits never gives another prime of the form 4k+3. [Rupinski]
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