Python/Prime numbers

Socat incidence: the SSL implmentation uses a non-prime number as its Diffie-Hellman p-parameter

The parameter p (from the "Socat backdoor" incidence) is given as

p = 143319364394905942617148968085785991039146683740268996579566827015580969124702493833109074343879894586653465192222251909074832038151585448034731101690454685781999248641772509287801359980318348021809541131200479989220793925941518568143721972993251823166164933334796625008174851430377966394594186901123322297453 

1. Use the trial_division function to find all prime factors of p less than 10^6

2. The parameter p had a transcription error. There is a prime that differs from p in one decimal digit.

Write code to find all such primes.