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 ultimately …

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 Indians, who …

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!

Discover what the number 1 means with fun examples. Learn how to write 1 in words and boost your maths skills with Vedantu!

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 that it is …

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 measurement.

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

The number 1 is unique in many ways, and holds a fascinating position in the world of mathematics, science, and culture. As the first whole number, it is the foundation for all other numbers and serves …