The number 40 is found in many traditions without any universal explanation for its use. In Jewish, Christian, Islamic, and other Middle Eastern traditions it is taken to represent a large, approximate …

The number 40 is spelled forty despite the fact that four contains a u. Even though it is often misspelled fourty, the only widely accepted spelling of the number is forty.

Jun 20, 2025 · We combed through popular culture, literature and history for the most fascinating facts about 40, so you could decide for yourself. Read on, and get ready to have a new favorite number.

Jun 21, 2023 · The number 40 (forty) is correctly spelled forty. Fourty is a misspelling, however common. Not all style guides require writing out numbers over ten.

WD-40 is the trademark of a widely used penetrating oil spray. It was developed in 1953 by the chimist, Norm Larsen to eliminate water and prevent corrosion on electrical circuitry.

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In a nutshell 40 is an even composite number composed of two different prime numbers multiplied together. It has a total of eight divisors.

So, even though the number four is spelled with a “u,” the correct spelling you should use for 40 is, in fact, “forty”—no “u” in sight. “Fourty” isn’t an alternative spelling.

Discover the fascinating world of the number 40! Explore its meanings, facts, significance in math, science, religion, folklore, angel numbers, arts, and more.

forties, the numbers, years, degrees, or the like, from 40 through 49, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature.