The last verse in sura 36 which is the 19th initialed sura in the Quran is 83 and 83 is a prime number. Hence, 36:83 is the 951st prime numbered verse from the beginning of the Quran.
951 is a bi-prime and its index is 285. However, 285 = 15 × 19 is the frequency of the initial letters YaSeen in this sura which is called YaSeen.
We also have the following table,
323 = 17 x 19
But 17th composite is 27 and the 19th composite is 30 and we are back to 27:30 where the opening statement of sura 9 is compensated.