Prove that p^6 – 1 is divisible by 504 for all primes p > 7.
Remember how to do the formula, X=10+Log(X)?
The easy answer, was to guess a value of X and figure the Log of it, and add 10.
That answer gives the next X which is much closer to the right X.
Repeat figuring the X until it does not change. It is the LOG function that makes the X increase buy [...]