The combustion of the hydrogen and of the oxygen at the point of the cylinder produces solely the vapor or steam of water. Five Weeks in a Balloon by Verne, Jules View in context.
Factorial number system. In combinatorics, the factorial number system, also called factoradic, is a mixed radix numeral system adapted to numbering permutations. It is also called factorial base, although factorials do not function as base, but as place value of digits.
In mathematics, a factor of a base number is any number that can be evenly divided into the base number. Due to this definition, a factor can only be less or equal to the original base number. Although all whole numbers can be divided evenly by one, it is still considered a factor.