an astounding fact for one man, a triviality for mankind!
 

for k>67, when pg(k) is probable prime and k is prime, then k-42 is prime as well!






for k>67


pg(79), pg(359), pg(3371), pg(331259) are probable primes with 79, 359, 3371 and 331259 primes.


79-42 is prime
359-42 is prime
3371-42 is prime
331259-42 is prime
!!!