Cofactor
# Cofactor

Cofactor may also refer to:

* Cofactor (biochemistry), a substance that needs to be present in addition to an enzyme for a certain reaction to be catalysed
* A domain parameter in elliptic curve cryptography, defined as the ratio between the order of a group and that of the subgroup
* Cofactor (linear algebra), the signed minor of a matrix
* Minor (linear algebra), an alternative name for the determinant of a smaller matrix than that which it describes
* Shannon cofactor, a term in Boole's (or Shannon's) expansion of a Boolean function
