Definition of

Power

Power
The power (or exponent) of a number says how many times to use the number in a multiplication.

It is written as a small number to the right and above the base number.

In this example the little "2" says to use 8 two times in a multiplication:

82 = 8 × 8 = 64


But power can also mean the result of using an exponent, so in the previous example "64" is also called the power.

Another example: 24 = 2 × 2 × 2 × 2 = 16
• the power is 4: "2 to the power 4 is 16"
• or we can say the power is the result of 16: "the 4th power of 2 is 16"

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