Question

# Which number is the multiplicative identity for integers?

A

1

B

0

C

-1

D

Every number is a multiplicative identity of itself

Solution

## The correct option is C 1 Multiplicative identity is the number which, when multiplied with a number, results in the same number. For example, if the multiplicative identity is x, then the product of x and a number a should be equal to a. x×a=a  ⟹x=1 Or, we could say that 1 is the multiplicative identity because the product of any number and 1 is that number itself. 5×1=5 −3×1=−3  and so on. Mathematics

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