Class 5MathematicsBe My Multiple, I'll be Your Factor
HCF (Highest Common Factor)
HCF is the largest number that divides two or more numbers exactly. To find HCF of 12 and 18: Factors of 12: 1,2,3,4,6,12. Factors of 18: 1,2,3,6,9,18. Common factors: 1,2,3,6. HCF = 6 (the highest). HCF is also called GCD (Greatest Common Divisor).
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