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 mathematics, the number one is the multiplicative identity. [1] . It is also the only number for …

Learn the different ways number 1 can be represented. See the number one on a number line, five frame, ten frame, numeral, word, dice, dominoes, tally mark, fing...more

Jun 20, 2025 · 1 (previous 0, next 2) The cardinal number one, a single thing or unit. A digit in decimal and every other base numbering system, including binary, octal, and hexadecimal. …

In mathematics, the number 1 is the natural number [1] that follows 0 and precedes 2. It is an integer and a cardinal number, that is, a number that is used for counting. [2] . In addition, it is …

Jun 27, 2025 · The number one (1), also called "unity," is the first positive integer. It is an odd number. Although the number 1 used to be considered a prime number, it requires special …

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 …