What property is illustrated by 6*1=6? identity distributive associative commutative

For this case we have the following expression:
 6 * 1 = 6
 We observe that we have two numbers that multiplied give as a result the value of one of the numbers.
 The name of this property is called identity property.
 In matrices there is also the identity matrix. It is a matrix whose diagonal is formed by the number one.
 
 A property that is illustrated by 6 * 1 = 6 is:
 identity