Use this article for a post in Alteredzine. This is an interesting post that showa interesting facts about multiplications'
First it shows multiplication as the area of a rectangle by displaying a grid.
Second it shows the commutative property of multiplication by flipping a rectangle around the diagonal of a grid
Third there is only one way to write a number as a product of primes. This is the fundamental theorem of Arithmetic
Any multiple of a number is divisible by the factors of that number. For example if 12 =2*3 then 24 which is a multiple of 12 is also a multiple of 2 and 3
In order to find out if a number is the square of another number you break that number in primes. The primes will be repeated. For example 36 = 4*9 = 2*2*3*3 = 6*6.
There are six ways to write 12 as a product of 2 numbers. These rectangles form an hyperbola whose equation is a*b = 12.
To multiply two numbers it is easier to decompose it in primes. However with a big number it takes two much time