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Watch the complete video explanation with divisibility rules and HCF-LCM shortcuts.
HCF (Highest Common Factor) - Largest number that divides both numbers completely.
LCM (Least Common Multiple) - Smallest number divisible by both numbers.
HCF × LCM = Product of the two numbers
Formula:
2: Last digit even | 4: Last 2 digits ÷4 | 8: Last 3 digits ÷8
Example:
Is 1256 divisible by 8?
256 ÷ 8 = 32. Yes, divisible by 8.