MATH REVIEW: USEFUL MATH FOR EVERYONESECTION 3. WHAT IS AN EXPONENT? An exponent refers to the number of times a number is multiplied by itself. For example, 2 to the 3rd (written like this: 2^{3}) means:
2^{3} is not the same as 2 x 3 = 6. Remember that a number raised to the power of 1 is itself. For example,
There are some special cases:
You can have a variable to a given power, such as a^{3}, which would mean a x a x a. You can also have a number to a variable power, such as 2^{m}, which would mean 2 multiplied by itself m times. We will deal with that in a little while. For more information about this site contact the Distance Education Coordinator. Copyright © 2004 by the Regents of the University of Minnesota, an equal opportunity employer and educator. |