8971
This number is a prime.
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8971 is the largest 4-digit prime p for which p^2 +
reversal(p) is also prime: 8971^2 + 1798 = 80480639, which
is prime. [Keith]
Submitted: 2024-01-01 01:34:12; Last Modified: 2024-01-01 19:36:13.
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