10000000097
This number is a prime.
1 0000000097
Just showing those entries submitted by 'Gudipati': (Click here to show all)
The smallest naughty prime that remains prime after deleting any digit. The primes produced are 97 along with naughty twin primes 1000000007 and 1000000009. [Gudipati]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean