1 is the basic building block of our number system; a single identity; a unit. The first positive integer, 1 is neither prime nor composite. In mathematics, 1 is also the only number for which these facts are true (so says Wikipedia): Any number n multiplied by 1 equals that number: n × 1 = n, example 7 × 1 = 7. […]
Life Lessons Through a Mathematical Lens