Bertrand's Postulate claims that there is always a prime between a positive integer and this number times that integer. The Euler characteristic of planar graphs and polyhedra is this number, meaning the number of faces plus vertices minus (*) edges is this number. An n-dimensional cube has this number to the power of n vertices, and Mersenne primes are one less than a pow
Bertrand's Postulate claims that there is always a prime between a positive integer and this number times that integer. The Euler characteristic of planar graphs and polyhedra is this number, meaning the number of faces plus vertices minus (*) edges is this number. An n-dimensional cube has this number to the power of n vertices, and Mersenne primes are one less than a power of it. This is the largest number equal to its own factorial, and the square root of this integer is the hypotenuse of an isosceles right triangle with side length one. For ten points, what is this only even prime number?
Bertrand's Postulate claims that there is always a prime between a positive integer and this number times that integer.
{Two}