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 …

Jack Hartmann's I Can Show the Number 4 shows the different ways number 4 can be represented. Learn about the number 4 in this number song. Learn the differ...

The meaning of FOUR is a number that is one more than three. How to use four in a sentence.

DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘4'. Views expressed in the examples do not represent the opinion of …

Define 4. 4 synonyms, 4 pronunciation, 4 translation, English dictionary definition of 4. Noun 1. 4 - the cardinal number that is the sum of three and one IV, Little Joe, quadruplet, quartet, …

5 days ago · 4 (prev 3, next 5) The cardinal number four. A digit in the decimal system of numbering, and also in octal, and hexadecimal. (phonetics, often superscript) The pitch of a …

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.

The number 4 is the only digit in the English language that has the same number of letters as its numerical value. It is also the smallest composite number, as it is the product of two prime …

In mathematics, the number four is an even number and the smallest composite number. Four is also the second square number after one. A small minority of people have four fingers on each …

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 …