In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number.

Dec 9, 2025 · 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 …

The glyph used today in the Western world to represent the number 1, a vertical line, often with a serif at the top and sometimes a short horizontal line at the bottom, traces its roots back to the …

Explore the curious properties of number 1, an odd number which is uniquely neither prime nor composite. Includes mathematical info, prime factorization, divisors, bases and much more! A …

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 …

one 1 of 4 adjective ˈwən Synonyms of one 1 : being a single unit or thing one day at a time

Dec 3, 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 (number) ... Chinese hand sign 0:01 Pronunciation of the number 1. One (1) is the first natural number, followed by two, then followed by three. The Roman numeral for one is I. Babylonian …

Define 1. 1 synonyms, 1 pronunciation, 1 translation, English dictionary definition of 1. Noun 1. 1 - the smallest whole number or a numeral representing this number; "he has the one but will …

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 …