Divisible/Divisor/Element/Element of a Set/Empty Set
DIVISIBLE Capability of being separated equally without a remainder. Example: 18 is divisible by 1, 2, 3, 6, 9 and 18
DIVISOR A number that tells what kind of equal parts, groups or sets the dividend is to be separated.
ELEMENT A member of a set.
ELEMENT OF A SET A member of a set.
EMPTY SET The set which has no members. The number of the empty set is zero. A symbol for the empty set is { }.