191
This number is a prime.
Just showing those entries submitted by 'Gupta': (Click here to show all)
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]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell