About 607,000 results
Open links in new tab
  1. 4 - Wikipedia

    4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is a square number, the smallest semiprime and composite number, and is considered unlucky in …

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

    Learn to recognize and understand Number 4. Learn to count up to and down from four. Created by teachers, learn how to show 4 in a ten frame. Learn to draw 4...

  3. 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.

  4. 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.

  5. Play 4 In A Line! - Math is Fun

    4 In A Line! Called "Connect 4" by Hasbro. Play against computer or another human. A great challenge.

  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. About The Number 4 - Numeraly

    Discover the fascinating world of the number 4! Explore its meanings, facts, religious significance, angel number interpretations, and its role in arts and literature.

  8. 4 - Wiktionary, the free dictionary

    Oct 7, 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 …

  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. 4 - Definition, Meaning & Synonyms | Vocabulary.com

    Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.