Although 1 meets the naïve definition of a prime number, being evenly divisible only by 1 and itself (also 1), by modern convention it is regarded as neither a prime nor a composite number.

Jan 23, 2026 · 1 (Should we delete (+) this sense?) (Internet slang, leetspeak, sarcastic) Deliberate misspelling of !, imitating someone who is too excited to consistently press the shift key while typing …

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 …

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 number 1

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Jan 18, 2026 · Explore the hidden side of 1, an odd number which is uniquely neither prime nor composite. Includes Prime Factorization, Divisors, Bases and Much More! A fascinating math …

Jan 29, 2026 · 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 …

Explore the fascinating world of the number 1! Uncover its meanings, facts, religious significance, angel number interpretations, and roles in arts and literature.

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

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