>>14350257>password is literally just 314Buddy, it would be faster to bruteforce the password, knowing that it's only numbers. Assuming this, there are 1+e20 (10^20) possible combinations, where x is the length of the password. Assuming a maximum of 100,000,000,000,000,000,000 possible passwords, or a password space of 1e+20, and assuming a very conservative 100,000,000,000 ops/guesses per second on a single modern CPU core for about 1,000,000,000 seconds (or about 31 years). If we parallelize that to 64 cores, we get a total of 6.4e+12 ops/guess per second, or about 15,625,000 (around 6 months) seconds to guess all 20 character, numerics-only password.
But, if we instead assume the midwit who put a dx inside a square root, is also terrible at other tasks such as securing his wifi, then we can realistically shrink our max password size to 8 chars, or a password space of 1+e10 (10^10) or 10,000,000,000. Assuming we still have our CPU cores, this would be cracked in 1/10 of a second -- and we would not need to do any real math.
The steps needed to get a wifi cracker are trivial, and are left as an exercise to the reader.