23

This number is a prime.

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The largest integer that cannot be expressed as the sum of two nonsquarefree numbers. A number is nonsquarefree (or non-squarefree) if it contains at least one square in its prime factorization. [Rupinski]

Submitted: 2003-01-20 02:10:40; Last Modified: 2020-02-26 11:33:51.