divisor

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divisor

1. a number or quantity to be divided into another number or quantity (the dividend)
2. a number that is a factor of another number

divisor

[də′vīz·ər]
(mathematics)
The quantity by which another quantity is divided in the operation of division.
An element b in a commutative ring with identity is a divisor of an element a if there is an element c in the ring such that a = bc.

divisor

A quantity that evenly divides another quantity.

Unless otherwise stated, use of this term implies that the quantities involved are integers. (For non-integers, the more general term factor may be more appropriate.)

Example: 3 is a divisor of 15. Example: 3 is not a divisor of 14.