Twin Symmetric Book

Symmetric Book I

• Odd and Even numbers
• Surahs of which the number of ayats are greater than sequence number
• Surahs of which the number of ayats are smaller than sequence number
• Prime Numbers
• Sequence Numbers Set and Number of Ayats Set
• The numbers which are divided by two and not divided by three
• The numbers which are divided by three and not divided by two
• The numbers which are neither divisible by two nor by three
• The numbers which are divisible by two and three
• The numbers which are divisible by two
• The numbers which are divisible by three
• Sum of the Prime Factors
• Perfect Numbers
• Abundant Numbers
• Deficient Numbers