733

This number is a prime.

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

733+666^2=444289, 444+289=733; 733+666^3=295409029, 295+409+29=733; 733+666^5=131030122141309, 131+30+122+141+309=733. Note that all the three numbers above, 666+733 as well 666733 are primes. The only other prime sharing the same properties is 1327. [Petrov]