**10,000 is the number 10 to the fourth power.** To elevate 10 to the fourth power, multiply 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by 10 by

The base is ten, and the exponent is four in the formula 104. When the base is 10, the formula is quickly simplified by writing a one followed by the exponent’s specified number of zeros. The number 104 is written as one followed by four zeros, or 10,000 in the example above. One followed by two zeros, or 100, equals the power of 102, and one followed by three zeros, or 1,000, equals the power of 103.