Quran Math Miracles Ep 16 An Odd Surah

For further research, when I took the number of appearances of the letters of the word masad (13) in the chapter and subtracted there total from the number of appearances of the letters of the chapter title in the chapter, al-masad (34) I got 21 which of course is the total number of letters used in this entire chapter. also keep in mind that the total numerical letter value of the chapter is 5431 which is a prime number and its order among prime number is 717 which is a thread worthy of more research.