1 (one) is the first positive integer, a number that represents a single object or a first item in a row. It is the first odd number.
1 is a multiplicative identity, meaning that x 1 = x* for any number x. It is a positive number, an odd integer, a rational number and a real number.
Even though 1 is only divisible by 1 and itself, it is not considered a prime number, and is the only such number.
This page was last edited on 2026-09-25 02:04:49.
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