About 143,000,000 results
Open links in new tab
  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. [citation …

  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

    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, …

  5. 3 (number) - Simple English Wikipedia, the free encyclopedia

    Three is an important number for many cultures (groups of people living together). It is also a prime number. It is the first odd prime. In Roman numerals, it is III. three gifts of the wise men …

  6. :3 | What Does :3 Mean? - Cyber Definitions

    :3 is an emoticon used to represent a Coy Smile. This page explains how :3 is used in texting or on apps like TikTok or Instagram.

  7. 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.

  8. Mathway | Basic Math Problem Solver

    Free math problem solver answers your homework questions with step-by-step explanations.

  9. 21 Fun Facts About The Number 3 That Will Surprise You

    Feb 4, 2023 · Have you ever wondered why the number 3 appears so frequently in various cultures, stories, and systems? From its deep spiritual significance to its prominent presence …

  10. 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).