The multiplicative identity, also known as the identity element, is multiplied against every element of a group, and those elements remain unchanged. For example, when considering real numbers, the identity element is 1. 7*1&=7 & 2.36 *1 &= 2.36 [1em] 34*1&= 34 & π *1&=π The exception to this identity is 0 since 0*1=0. Therefore, it is excluded when dealing with the identity of real numbers.