10

This number is a composite.

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

10! = 3! 5! 7! Note the first three consecutive odd primes. [Capelle]

The number of known perfect powers n with no primes between n and the next larger perfect power. [Capelle]

The smallest reflectable semiprime and also the smallest reflectable brilliant number. [Capelle]