Exponent: S represent repeated multiplication of a number

Exponents represent repeated multiplication of a number by itself. If a number ‘a’ is multiplied by itself ‘n’ times, it is written as an. Here, ‘a’ is called the base, and ‘n’ is the exponent (or power) telling us how many times ‘a’ is used as a factor. For example, 2 4 means 2 × 2 × 2 × 2 = 16. What is Exponent ? An exponent of a number, represents the number of times the number is multiplied to itself. If 8 is multiplied by itself for n times, then, it is represented as: 8 x 8 x 8 x 8 x …..n times = 8 n The above expression, 8 n, is said as 8 raised to the power n. Therefore, exponents are also called power or sometimes indices. Examples: 2 x 2 x 2 x 2 = 2 4 5 x 5 x 5 = 5 3 10 x 10 x 10 x 10 x 10 x 10 = 10 6 General Form of Exponents The exponent is a simple but powerful tool. It ... To express any number in scientific notation, write it as the product of a power of ten and a number greater than or equal to 1 but less than 10 . In scientific notation, the Sun is located at a distance of 1.0×1021 m from the centre of our galaxy and the size of each atom is 3.0×10−8 centimetres across. In mathematics, exponentiation , denoted bn, is an operation involving two numbers: the base, b, and the exponent or power, n. [1] When n is a positive integer, exponentiation corresponds to repeated multiplication of the base: that is, bn is the product of multiplying n bases: [1] In particular, . The exponent is usually shown as a superscript to the right of the base as bn or in computer code as b^n. This binary operation is often read as " b to the power n "; it may also be referred to as ...