8

This number is a composite.

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

The only known cube that is the sum of the first n odd primes (3+5=8). [Bajpai]

The smallest cube k such that 3^k + k and 3^k - k both are prime. [Bajpai]

The smallest cube k such that 999^k - k is an emirp. [Bajpai]