Question

When we multiply any given integer with 1, the result is always ___________.

• A. half the integer
• B. the same integer
• C. double the integer
• D. 1

Answer 1

The correct option is B the same integer

When we multiply any integer with 1, we get the same integer.

Let's take a few examples to verify this.
$2\times 1=2$
$0\times 1=0$
$(-3)\times 1=(-3)$

We notice that multiplying any integer by 1 gives the same integer.

Therefore, 1 is also the multiplicative identity for integers.