Pentagonal Number - Tests For Pentagonal Numbers

Tests For Pentagonal Numbers

The simplest way to test whether a positive integer x is a (non-generalized) pentagonal number is by computing

If n is a natural number, then x is the nth pentagonal number. If n is not a natural number, then x is not pentagonal.

Read more about this topic:  Pentagonal Number

Famous quotes containing the words tests and/or numbers:

    “The secret of a leader lies in the tests he has faced over the whole course of his life and the habit of action he develops in meeting those tests.”
    —Gail Sheehy (b. 1937)

    “Think of the earth as a living organism that is being attacked by billions of bacteria whose numbers double every forty years. Either the host dies, or the virus dies, or both die.”
    —Gore Vidal (b. 1925)