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  1. 4 - Wikipedia

    Approximately four weeks (4 times 7 days) to a lunar month (synodic month = 29.54 days). Thus the number four is universally an integral part of primitive sacred calendars.

  2. FOUR | definition in the Cambridge English Dictionary

    FOUR meaning: 1. the number 4: 2. a team of four people in rowing, or the boat that they use 3. in cricket, four…. Learn more.

  3. Learn About the Number 4 | Number of the Day: 4 | Four with

    See the number 4 with objects that sometimes come to life for a fun surprise! This early math video works great as a "Number of the Day" lesson or as an exciting early math activity for …

  4. 10 Interesting Facts About The Number 4 - The Fact Site

    May 4, 2021 · The number 4 can be linked to numerology, superstition, important dates and so much more. Here are 10 facts about the number 4 that you should know.

  5. 4 (number) - New World Encyclopedia

    Four is the second square number (a "square number" is an integer that can be written as the square of some other integer) and the second centered triangular number.

  6. 4 - definition of 4 by The Free Dictionary

    Noun 1. 4 - the cardinal number that is the sum of three and one IV, Little Joe, quadruplet, quartet, quatern, four, quaternion, quaternity, tetrad,...

  7. 8 Fun Facts About the Number 4 - Facts.net

    Oct 19, 2023 · Explore fascinating facts about the number 4. Discover its significance in various cultures, including its symbolism and representations in numerology, astrology, and mythology.

  8. 4 - Wiktionary, the free dictionary

    Oct 31, 2025 · A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ४ (4)), a cursive form of four lines (to represent the number four) arranged in the shape of a …

  9. Number 4 - Facts about the integer - Numbermatics

    Your guide to the number 4, an even composite number composed of a single prime multiplied by itself. Mathematical info, prime factorization, fun facts and numerical data for STEM, education …

  10. About The Number 4 - Numeraly

    Welcome to the About The Number 4 page, where we delve into the fascinating world of this unique and ubiquitous digit. As one of the most significant numbers in various fields such as …