23571...66643 (2434-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 smallest titanic prime P formed from the concatenation
of the first n palindromic primes, i.e., {2, 3, 5, 7, 11,
101, ..., 3460643, 3466643}, (case n=387). Curiously, P
ends with the smallest palindromic beastly Sophie Germain
prime (3466643). [Bajpai]
Submitted: 2019-01-16 19:55:57; Last Modified: 2019-01-16 19:57:20.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell