Why Isn't 1 a Prime Number

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A number divisible only by 1 and itself is considered a prime number. 1 seems to conform to the definition; it is divisible by 1 and itself and by no other number. But the definition of prime numbers excludes 1. Why?

Many people think it's because, in the case of 1, 1 and itself are the same number. But this is far from the truth.

Bisection Method of Finding Square Roots

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While you already know how to find the square root of a number, you might not be able to describe the process efficiently and precisely to a computer. This could mean embarrassment if you are a computer programmer. Knowing an algorithm is also required of a mathematician. Moreover, knowing something new is always good for knowledge-seekers (which I assume you are if you are reading my blog).

In this post, we will look at a good-enough method of finding square roots, known as the bisection method.

Quadratic Equations

In elementary algebra, any equation of the form ax^2 + bx + c = 0 is termed as quadratic equation. In the equation, x represents an unknown value while a, b, and c represent known values. The value of a must not be 0.

In this post, you will learn how to solve quadratic equations and their usage in the real-world.