I say this because me and a couple of friends have found a way to find a prime number, but not all of them as it misses a few and then finds one.

Like this: Say we only know of primes 2, 3, 5, 7 and wanted to know a prime with 2 digits, our way would work out number 19, ok it missed a few but its prime and it continues working so far. So technically this could be used to calculate the prime with 10 million digits (with a bigger computer without the 32-bit windows limit), ok it might not get the first prime with 10 million digits but maybe the 3rd or 4th.