Quran = Readable Encrypted Text
1 is indivisible and is called The Unit. [PROTON]
Prime Numbers (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31 ...) are divisible by themselves only [divisibility by 1 is meaningless as it never divides a number into smaller parts] [ATOMS]
Composite Numbers (4, 6, 8, 9, 10, 12, ...) are evenly divisible by themselves and some prime numbers below them. [MOLECULES]
Additive Prime Numbers are prime numbers with prime digit sums (23 is prime and 2+3=5 is prime too).
Additive Composite Numbers are composite numbers with composite digit sums (24 is composite and 2+4=6 is composite too).
The Quran starts with a chapter named The Opener or The Key (الفاتحة) that has of 7 verses, 29 words, and 139 letters which are all prime numbers (وتر) and their digit sums are primes too [7=7, 2+9=11, 1+3+9=13]. Such prime numbers are called Additive Prime Numbers.
7th additive prime number is 29 Quran's first 7 Quran verses = 29 words Quran's first 7 Quran words = 29 letters Quran's last 7 Quran verses = 29 words Quran's last 7 Quran words = 29 letters
The Quran is divided into chapters (Surah سورة) acting as perimeters protecting their verses (Ayah ءاية). Chapters are indivisible encryption units and their verses are variable length encryption blocks.