Euler's formula states that the number of vertices, minus the number of edges, plus the number of faces of any convex polyhedron is equal to this number.
This is the number of variables that the Ackermann function takes. Euler's formula states that the number of vertices, minus the number of edges, plus the number of faces of any convex polyhedron is equal to this number. This is the only number for which the reciprocals of its powers sum to the number itself. This is the highest number x at which a to the x plus b to the x can equal c to the x, according to Fermat's Last Theorem. It is the third number in the Fibonacci series. For 10 points, name this number, the only even prime.
This is the number of variables that the Ackermann function takes.
two [accept {2}]