5:25
Sieve of Eratosthenes
Sohael Babwani
6:21
Twin prime and Co-prime numbers
9:36
Factors of Natural Numbers
6:09
Prime and Composite Numbers
5:00
Natural Numbers and Odd and Even numbers
8:02
Prime Factors
11:57
Divisibility Tests
5:10
Deriving other Divisibility Tests
11:30
Highest Common Factor (HCF) or Greatest Common Divisor (GCD)
8:01
Other methods to find Highest Common Factor (HCF) or Greatest Common Divisor (GCD)
9:56
More practise on HCF (Highest Common Factor) or GCD (Greatest Common Divisor)
10:48
Applications of HCF (Highest Common Factor) or GCD (Greatest Common Divisor)
Lowest Common Multiple (LCM)
10:38
Applications of LCM
