Prime Number 13

Author:
RV'SMath
How to Calculate the Number 13 1) Type 10 into input Box ( Best way to type into box: Click in box to Right Side of Number - Back Space - Type in New Number ) 2) Result = 5.85 3) Divide 5.85 / 1.35 = 4.333333333333 4) Multiply by 3 giving the number 13 5) 4.333333333 * 3 = 13