Recent content by PrimeNumbers

In this case the number as a whole changes from 11 to 11/3! but 11 itself doesn't change at all. If it were 25 and I divided it by 120 it would change to 5 and not remain the same. Basically I can write a fraction of X/(Square root of X rounded down)! on a piece of paper or calculator and change...

[SIZE="5"]If you square root X you must round down. So take 2 for example Square root rounded down is 1. Then 2/1! remains as 2/1 so unchanged and is prime. Because there are no factors under the square root of 2 bigger than 1. Take 6 (which is 3 x 2), square root rounded down is 2. 2! is...

[SIZE="5"]DIVIDE X by (SQUARE ROOT X)! ! BEING A FUNCTION ON YOUR CALCULATOR THAT SUMS 1 x 2 x 3 etc. IF PRIME THEN X WILL NOT BE DIVISIBLE BY ANY OF THE NUMBERS MULTIPLIED BY EACH OTHER BELOW THE SQUARE ROOT OF X AND SO WILL REMAIN UNCHANGED BY THE DIVISION. IF NOT PRIME THEN ONE OF IT's...