- 4253 is the exponent of the 19th Mersenne Prime.
- Chapter 42 has 53 verses.
- 4253 is the 249th Non-Chen Prime.
- The 195th composite is 249.
- Recall 195 is the 19th Sphenic Number.
- 195 Non-Chen Prime is 3373.
- Sura 33 has 73 verses.
- The 150th Composite is 195, and 195 is the numericalvalue of Kaf (20) + Ha (5) + Ya (10) + Ayn (70) + Sad (90) in sura 19.
- The 19th quad-prime is 150.
- The 114th composite is 150.
- 114 is the number of chapters in the Quran.
- The 249th Lonely Gaussian Prime is 5683 which is the748th Prime.
- The 748th Lonely Prime is 9127.
- 249 = 3 × 83
- The indices of 3 and 83 are 2 23.
- 223 is the 19th Lonely Prime.
- 383rd Composite is 475 = 5 × 5 × 19
- 5519th Composite is 6346 which is the total number ofverses in the Quran.
- 6346 = 2 × 19 × 167
- The indices of these primes are 1 8 39.
- 1839th Composite is 2166
- 2166 = 19 × 114!
