1×213

1×213 denotes the product of the integers 1 and 213. In base-10 arithmetic, multiplication combines two factors to produce a single value, and in this case the result is 213. The expression is an instance of the general rule that multiplication is commutative and that multiplying by 1 does not change the other factor.

The multiplicative identity property applies here: 1 is the identity element for multiplication, meaning that for any integer n, 1×n = n. Therefore, 1×213 = 213, and more generally 1×n = n. This property underpins basic algebra and simplifies many calculations.

Additionally, the number 213 itself factors as 3×71, so 213 can be expressed as a product of primes, independent of the presence of the factor 1. The concept of 1×213 is commonly used in introductory mathematics to illustrate the ideas of identity elements, commutativity, and the nature of multiplication.