
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.
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FOUR Definition & Meaning - Merriam-Webster
The meaning of FOUR is a number that is one more than three. How to use four in a sentence.
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4 - Wiktionary, the free dictionary
Dec 9, 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 cross (resembling …
4 (number) - New World Encyclopedia
Some buildings skip floor 4 or replace the number with the letter "F," particularly in heavily Asian areas. In the NATO phonetic alphabet, the digit 4 is called "fower."
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four - Wiktionary, the free dictionary
1 day ago · four (countable and uncountable, plural fours) (countable) The digit or figure 4; an occurrence thereof. (countable) Anything measuring four units, as length.
Number 4 - Curious Math Facts and Interesting Properties
Explore the curious properties of number 4, an even composite number composed of a single prime multiplied by itself. Includes mathematical info, prime factorization, divisors, bases and much more!