15591...75331 (79-digits)

This number is a prime.

155914471
2891223110 9108710219 2988383972 7659613569 5474794573 8936727723 3211975331

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The largest non-titanic prime formed from reverse concatenation of first n multidigit self primes (case n = 25). [Gupta]

Submitted: 2019-07-08 23:53:12; Last Modified: 2019-07-09 00:14:27.