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 Principia Mathematica, 1 is defined as the set of all singletons. In a multiplicative group or monoid, the identity element is sometimes denoted "1," but "e" (from the German Einheit, …

6 days ago · Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numerals (compare Devanagari script १ (1, “ éka ”)), possibly influenced by Roman numeral Ⅰ, both …

Jun 18, 2025 · Although the number 1 used to be considered a prime number, it requires special treatment in so many definitions and applications involving primes greater than or equal to 2 …

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...

Not surprisingly, the number 1 is generally treated as a symbol of unity. Therefore, in monotheistic religions, it often symbolizes God or the universe. The Pythagoreans did not consider 1 to be a …

1. 1 - the smallest whole number or a numeral representing this number; "he has the one but will need a two and three to go with it"; "they had lunch at one"

May 12, 2023 · Are you ready to learn some intriguing and entertaining facts about number 1? From its mathematical properties to its significance in different cultures and fields, you might …

1 is an odd number which is uniquely neither prime nor composite. It is known as the multiplicative identity or unit. It’s also the only positive number with no other divisors.