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  1. 3 - Wikipedia

    3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number.

  2. 3 (number) - New World Encyclopedia

    Three is the first odd prime number, and the second smallest prime. It is both the first Fermat prime (2 2º + 1) and the first Mersenne prime (2² - 1), as well as the first lucky prime.

  3. The number three - Britannica

    Nov 29, 2025 · The number 3 is a very mystical and spiritual number featured in many folktales (three wishes, three guesses, three little pigs, three bears, three billy goats gruff).

  4. Number 3 - Curious Math Facts and Interesting Properties

    Explore the curious properties of number 3, an odd number which is prime. Includes mathematical info, prime factorization, divisors, bases and much more! A fascinating reference for students, coders, …

  5. 3 - Wiktionary, the free dictionary

    5 days ago · Text style is forced with ︎ and emoji style with ️ . A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ३ (3)), from a cursive form of three lines to represent the …

  6. Properties of the number 3 - numberempire.com

    Properties of the number 3: factors, prime check, fibonacci check, bell number check, binary, octal, hexadecimal representations and more.

  7. 3 (number) Facts for Kids

    Many cultures around the world see the number three as important or special. The number three appears in many famous stories, beliefs, and traditions. Here are some examples: The Three …

  8. Number 3 Meaning of the Number 3 - Fun Facts

    Gemini is the third astrological sign of the Zodiac. (May 21 – June 21) Number three is the number of Jupiter.

  9. 3 -- from Wolfram MathWorld

    Dec 3, 2025 · 3 is the only integer which is the sum of the preceding positive integers (1+2=3) and the only number which is the sum of the factorials of the preceding positive integers (1!+2!=3).

  10. Why Is 3 Considered a Magic Number and Its Significance Across …

    Sep 22, 2024 · It’s simple: when you share ideas or talk about a product, focus on just three key things. Three shows up in art and science as well. Painters use it for balance in their work; scientists see …