Question

Is 1 the multiplicative identity for integers and whole numbers ?explain it.

Answer 1

The multiplicative identity of any integer a is a number b which when multiplied with a, leaves it unchanged, i.e. b is called as the multiplicative identity of any integer a if a× b = a. Now, when we multiply 1 with any of the integers a we get a × 1 = a = 1 × a So, 1 is the multiplicative identity for integers.