Exponent

Initial Definition

An exponent is a number in a power that represents how many times a base is used as a factor.

2^{4} = 2 x 2 x 2 x 2.

2^{4} = (2)(2)(2)(2).

2^{4} = 16

Base: 2

Exponent: 4

Expanded Form: 2 x 2 x 2 x 2 or (2)(2)(2)(2).

Standard Form: 16

Video does not play in this browser or device. Please try another device or upgrade your browser.

Convention

If a base is written without an exponent, the exponent is one.

- 3 = 3
^{1}. - a = a
^{1}. - -3 = (-3)
^{1}. [Note: brackets are important.] - 4x
^{3}yx^{2}= 4^{1}x^{3}y^{1}x^{2}.