42574...61941 (948-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

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The largest non-titanic prime formed from the reversal of the ordered concatenation of the first n squares (case n=218). [Gupta]

Submitted: 2022-02-10 12:51:10; Last Modified: 2022-02-10 13:20:31.