Only one sura is prefixed with these initials, Sura 7, and the letter "A" occurs in this sura 2529 times, "L" occurs 1530 times, "M" occurs 1164 times, and "S" (Saad) occurs 97 times. Thus, the total occurrence of the four letters in this sura is 2529+1530+1164+97 = 5320 = 19x280.
An important observation here is the interlocking relationship involving the letter "S" (Saad). This initial occurs also in Suras 19 and 38. While complementing its sister letters in Sura 7 to give a total that is divisible by 19, the frequency of this letter also complements its sister letters in Suras 19 and 38 to give a multiple of 19. (See above).
Additionally, the Quranic Initial "S" (Saad) interacts
with the Quranic Initials "K.H.Y.`A." (Kaaf Haa Ya `Ayn) in Sura 19 to
give another total that is also a multiple of 19. (See below). This inter-
locking relationship - which is not unique to the initial "S" (Saad) -
contributes to the intricacy of the Quran's numerical code.
