2×84

2×84 denotes the product of the integers 2 and 84. In standard arithmetic, 2×84 equals 168. Because multiplication is commutative, 84×2 also equals 168. It is the second positive multiple of 84, following 84 itself, and serves as a simple example in multiplication tables.

The prime factorization of 168 is 2^3 × 3 × 7. This follows from doubling 84, which has factorization 2^2 × 3 × 7; doubling adds another factor of 2. Consequently, 168 is an even number and divisible by 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, and 168, among others. This makes 168 a common value in problems involving area calculations, scaling, and unit conversions where factors of 2 are convenient.

In mathematical notation, the × symbol is used to indicate multiplication. While it is the standard in many contexts, other forms such as a centered dot or implicit juxtaposition are also used in different disciplines and programming languages. The expression 2×84 is a concise illustration of elementary multiplication and a basic building block in arithmetic reasoning.