Prime Numbers
Mathematics / Number Theory
A prime number is a number that is divisible only by one and by itself. Factors are numbers that can be divided into a number with no remainder. The factors of 18 are the numbers 1, 2, 3, 6, 9, and 18 continue reading this fact

How To Calculate The Circumference Of A Circle
Mathematics / Geometry
A circle is what you get if you take a straight line and bend it around so that its ends touch. You can demonstrate this by taking a piece of stiff wire and doing just that: bring the ends of the wire continue reading this fact

How To Calculate The Area Of A Circle
Mathematics / Geometry
A circle is the round counterpart of a square. To find the area of a square, one multiplies the length by the width. A circle doesn't have these, however, so there has to be a different way to calcula continue reading this fact
