4 - Wikipedia In internet slang, "4" can replace the word "for" (as "four" and "for" are pronounced similarly) For example, messaging "4 u" instead of "for you" when talking to someone
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
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
Number 4 - Curious Math Facts and Interesting Properties Explore the hidden properties of 4, an even semiprime number composed of a single prime number multiplied by itself Includes Prime Factorization, Divisors, Bases and Fun Facts for students, number lovers and curious minds
4 -- from Wolfram MathWorld The smallest positive composite number and the first even perfect square Four is the smallest even number appearing in a Pythagorean triple: 3, 4, 5 In the numerology of the Pythagorean school, it was the number of justice The sacred tetraktýs (10) was the sum of the first four numbers, depicted as a triangle with two equal sides of length 4 4 is the highest degree for which an algebraic
4 - Wiktionary, the free dictionary 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 +)