Jan 23, 2026tenth 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 number 1 is unique in many ways, and holds a fascinating position in the world of mathematics, science, and culture. 4 days agoalthough 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.
The roman numeral for one is i.