191
This number is a prime.
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The smallest prime in a set of four consecutive multidigit primes, i.e., {191, 193, 197, 199}, whose sum of
digits, i.e. {11, 13, 17, 19} is another set of four consecutive primes. [Gupta]
Submitted: 2005-05-18 13:24:59; Last Modified: 2020-06-11 15:33:09.
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