206

This number is a composite.

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

206^0 + 206^1+ 206^2 + 206^3 + 206^4 + 206^5 + 206^6 is a prime number. [Raghava]

206+206^2 +/- 1 is a twin prime pair. [Raghava]