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- Introduction to Factorization DEMO
- Problem-Concept of Factors
- Factors and Multiples
- Problem-Concept of Multiples
- Types of Natural Numbers
- More on Types of Natural Numbers
- Problem-Types of Natural Numbers

- Tests of Divisibility of Number Divisible by 2,3 DEMO
- 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
- Problem-Tests of Divisibility of Number Divisible by 12,15
- Tests of Divisibility of Number Divisible by 12,15
- Tests of Divisibility of Number Divisible by 25
- Problem-Tests of Divisibility of Number Divisible by 25

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

- Highest Common Factor (HCF) DEMO
- Problem-Highest Common Factors ( HCF )
- 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) DEMO
- Problem-Least Common Multiple ( LCM )
- Problem-LCM by Prime Factorization Method
- LCM by Short Division Method
- Problem-LCM by Short Division Method
- Relation Between HCF and LCM of Two Numbers
- Problem-Relation Between HCF and LCM of Two Numbers
- Applications of H.C.F And L.C.M
- Problem-Solve the Real Life Problems Involving HCF and LCM