Topic 1: Factors and multiples
Topic 2: Test for divisibility
Topic 3: Co prime numbers
Topic 4: Prime factorization method
Topic 5: Prime factorization method for finding HCF
Topic 6: Cross division method for finding HCF
Topic 7: How to solve problems of HCF-1
Topic 8: How to solve problems on HCF -2
Topic 9: Lowest common multiple ( L C M)
Topic 10 : Cross division method for finding L C M
Topic 11: Problems on L C M
Topic 12: Relation between H C F and L C M
Practice problems
Note book