Exponent Calculator

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* "e" can be entered as input. E.g: 2e4, 6e-3, 1.35e7

What is an exponent?

An exponent, often referred to as a power or a superscript, is a mathematical notation used to indicate the number of times a base number should be multiplied by itself. It is a fundamental concept in mathematics and is typically expressed as a small number placed above and to the right of a base number. The base number is raised to the power of the exponent to calculate the result.

an = a×a×...×a

In the expression "an," where "a" is the base and "n" is the exponent:

  • The base (a) is the number that gets multiplied by itself.
  • The exponent (n) tells you how many times the base should be multiplied by itself.

For example:

  • In 23, the base is 2, and the exponent is 3. This means you multiply 2 by itself three times: 2 × 2 × 2 = 8.
  • In 52, the base is 5, and the exponent is 2. This means you multiply 5 by itself two times: 5 × 5 = 25.

Exponents laws and rules:

  1. Product Rule:
    • If you have two exponential terms with the same base being multiplied together, you can add their exponents:
    • am * an = am + n
    • For example: 23 * 24 = 23 + 4 = 27
  2. Quotient Rule:
    • When you divide two exponential terms with the same base, you can subtract the exponent of the denominator from the exponent of the numerator:
    • am / an = am - n
    • For example: 56 / 52 = 56 - 2 = 54
  3. Power Rule:
    • When you have an exponent raised to another exponent, you can multiply the exponents:
    • (am)n = am * n
    • For example: (32)3 = 32 * 3 = 36
  4. Zero Exponent Rule:
    • Any nonzero base raised to the power of zero is equal to 1:
    • a0 = 1 (for a ≠ 0)
    • For example: 70 = 1
  5. Negative Exponent Rule:
    • If you have a nonzero base with a negative exponent, you can rewrite it as the reciprocal of the base raised to the positive exponent:
    • a-n = 1 / an
    • For example: 2-3 = 1 / 23 = 1/8
  6. Exponent of 1 Rule:
    • Any nonzero base raised to the power of 1 is equal to itself:
    • a1 = a
    • For example: 101 = 10

These basic exponent laws and rules are essential for simplifying and manipulating expressions involving exponents. They provide a foundation for more advanced algebraic operations and help solve a wide range of mathematical problems involving exponential notation.


See also
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