- Tests of Divisibility of Number Divisible by 2,3
- Problem-Tests of Divisibility of Number Divisible by 2,3
- Problem-Tests of Divisibility of Number Divisible by 4,5
- Tests of Divisibility of Number Divisible by 4,5
- Test of Divisibility of Number Divisible by 6
- Problem-Test of Divisibility of Number Divisible by 6
- Tests of Divisibility of Number Divisible by 8,9
- Problem-Tests of Divisibility of Number Divisible by 8,9
- Problem-Tests of Divisibility of Number Divisible by 10,11
- Tests of Divisibility of Number Divisible by 10,11

- Factorization
- Problem-Factorization
- Prime Factorisation
- Problem-Prime Factorization
- Index Notation
- Problem-Index Notation
- Factorization by Tree Method
- Problem-Factorization by Tree Method
- Factorization by Division Method
- Problem-Factorization by Division Method

- Highest Common Factors ( HCF )
- Problem-Highest Common Factors ( HCF )
- Find HCF of Three Numbers, Up to 2-Digits
- Problem-Find HCF of Three Numbers, Up to 2-Digits
- Finding HCF By Prime Factorization Method
- Problem-Finding HCF By Prime Factorization Method
- Finding HCF By Using Division Method
- Problem-Finding HCF By Using Division Method

- Least Common Multiple (LCM)
- Problem-Least Common Multiple ( LCM )
- Find LCM of Four Numbers Up to 2-Digits
- Problem-Find LCM of Four Numbers Up to 2-Digits
- LCM by Prime Factorization Method
- Problem-LCM by Prime Factorization Method
- LCM by Short Division Method
- Problem-LCM by Short Division Method