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  1. 40 (number) - Wikipedia

    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, …

  2. 11 Facts About the Number 40 You Never Knew - Reader's Digest

    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 …

  3. Forty or Fourty: How do you spell 40? | Merriam-Webster

    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.

  4. Number 40 facts

    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.

  5. Number 40 - Curious Math Facts and Interesting Properties

    Explore the curious properties of number 40, an even composite number composed of two distinct primes. Includes mathematical info, prime factorization, divisors, bases and much more!

  6. About The Number 40 - Numeraly

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

  7. Fourty vs. Forty: The Correct Spelling Made Clear

    Nov 5, 2021 · How should you spell the number 40? It seems obvious because the number four is spelled with a “u,” so therefore it’s spelled fourty right? Unfortunately, it's not that simple. The …

  8. Forty - Definition, Meaning & Synonyms | Vocabulary.com

    Whether you call it 40 or XL, you're talking about forty: the number between thirty-nine and forty-one.

  9. What does 40 equal to? - Answers

    Nov 10, 2024 · In mathematics, the number 40 is an integer that is equal to the product of 4 and 10. It is also a composite number, meaning it has factors other than 1 and itself.

  10. 40 - Wikipedia

    Look up forty in Wiktionary, the free dictionary. 40 or forty commonly refers to: 40 (number), the natural number following 39 and preceding 41 one of the years 40 BC, AD 40, 1940, 2040 40 …