199

This number is a prime.

Just showing those entries submitted by 'Gupta': (Click here to show all)

The smallest number with an additive persistence of 3. [Gupta]

The smallest emirp p such that p and p^2 have the same sum of digits. [Gupta]

The smallest emirp that is the sum of four consecutive Fibonacci numbers, i.e., F(8) to F(11). [Gupta]