1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers.

One (1) is the first natural number, followed by two. The Roman numeral for one is I. In mathematics, the number one is the multiplicative identity. [1] . It is also the only number for …

In mathematics, the number 1 is the natural number [1] that follows 0 and precedes 2. It is an integer and a cardinal number, that is, a number that is used for counting. [2] . In addition, it is …

Jun 20, 2025 · 1 (previous 0, next 2) The cardinal number one, a single thing or unit. A digit in decimal and every other base numbering system, including binary, octal, and hexadecimal. …

1 (one, also called unit, unity, and (multiplicative) identity) is a number, and a numerical digit used to represent that number in numerals. It represents a single entity, the unit of counting or …

Jun 27, 2025 · The number one (1), also called "unity," is the first positive integer. It is an odd number. Although the number 1 used to be considered a prime number, it requires special …

One is a number in Mathematics that represents the quantity or the value of 1. While counting, the number 1 is succeeded by 2 which is then succeeded by 3 and so on. Before learning some …

1 is the Hindu-Arabic numeral for the number one (the unit). It is the smallest positive integer, and smallest natural number. 1 is the multiplicative identity, i.e. any number multiplied by 1 equals …

1 Definitions of 1 noun the smallest whole number or a numeral representing this number synonyms: I, ace, one, single, unity

Your guide to the number 1, an odd number which is uniquely neither prime nor composite. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.