50350...93599 (42-digits)

This number is a prime.

50 3509521523 5415475575 6356957157 7587593599

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The only prime formed by concatenating in order all the 3-digit primes beginning with the same digit d, (case d=5). [Loungrides]

Submitted: 2015-07-28 04:12:03; Last Modified: 2020-06-28 16:01:38.