Q:

How many four-digit palindromiic number are there?

A:

Quick Answer

There are 90 four-digit numeral palindromes ranging from 1001 to 9999. There are also 90 three-digit palindromic numbers, 9 two-digit palindromes and 900 five- and six-digit numeral palindromes.

Continue Reading

Full Answer

A palindromic number refers to a numeric value that remains unchanged when its digits are written backwards or forwards. Some examples of four-digit palindromes include 1001, 6886, 4334 and 9559. The term palindromic is derived from palindrome, which is also used to refer to words whose spelling remains the same when its letters are written backwards like "rotor" or "radar." Palindromes can be found in other numeral system other than decimal. There are several palindromic binary numbers, such as 1111 and 1001.

Learn more about Math

Related Questions

  • Q:

    What activities does Think Through Math offer?

    A:

    Think Through Math offers a number of activities designed to motivate students in grades 3 and above to want to learn math, including games and theme-based contests. Students also have the ability to earn points that they can use to customize avatars and program dashboards or donate to charities.

    Full Answer >
    Filed Under:
  • Q:

    What is "term" in math?

    A:

    A term in mathematics is defined as a number, variable or number-variable combination in an algebraic expression or equation. Terms are separated from each other by a plus, minus or equal sign.

    Full Answer >
    Filed Under:
  • Q:

    What does "prime" mean in math?

    A:

    In mathematics, a prime number is any whole number greater than one that has no positive factors other than one and itself. For example, the number 17 is prime, because its only factors are one and 17.

    Full Answer >
    Filed Under:
  • Q:

    How is "exponential math" defined?

    A:

    Exponential math is any mathematical operation involving an exponent, which is the number or symbol placed above and after another number or symbol to indicate the power to which the former number is to be raised, Wikipedia explains. The operation 4 x 4, for example, is written exponentially as 4^2.

    Full Answer >
    Filed Under:

Explore