- The 19th Quad-Prime (a Composite number that has 4prime factors) is 150.
- Note, 150 = 2 × 3 × 5 × 5.
- 150 is the 114th Composite and 114 is the number of chapters in the Quran.
- The 150th Composite is 195.
- 195 is the 19th Sphenic Number. Note, a Sphenic number is a Tri-Prime with 3 distinct prime factors, i.e., 195 = 3 ×5 × 13.
- 195 is the numerical value of the initials كهيعص in Surah 19. 195 = 20 + 5 + 10 + 70 + 90 =
ك + ه + ي + ع + ص (Kaf + Ha + Ya + Ain + Sad). - 150th Composite of the type Index + Prime = Composite is 1281.
- 1281 is the number of digits of 19th Mersenne Prime.
- The 359th Composite of the type Index + Prime = Composite is 3339 = 422 + 2917
- 209th Gaussian Composite is 2917 which is the 11th permutation of the 19th permutation 9127. Note, 209 is thefrequency of عسق (AinSeenQaf) is surah 42, located in 42:2 and 209 = 11 × 19.
- Recall 359 is the 19th Emirp.
- The Emirp of 359 is 953.
- 953rd Composite is 1143 = 9 × 127.
