If you have a large enough table of primes and factors RSA 2048 is only about 5% harder to crack than a 1024. If you don't have one it is billions of times har

If you have a large enough table of primes and factors RSA 2048 is only about 5% harder to crack than a 1024. If you don't have one it is billions of times harder. How large is your Prime table? How large is mine? How large is the NSA's?