Find HCF of 49,77 by prime fatorisatio
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By prime factorisation,
- 49 = 7² × 11⁰
- 77 = 7¹ × 11¹
∴ HCF(49, 77) = 7¹ × 11⁰ (least common power)
⇒ HCF(49, 77) = 7.
More:-
To find LCM, we have to find the product of highest powers which lies in the prime factor.
So, HCF(49, 77) = 7² × 11 = 49 × 11 = 539.
- LCM of fractions = LCM of numerators ÷ HCF of denominators.
- HCF of fractions = HCF of numerators ÷ LCM of denominators.
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