Question

Find the HCF of the given numbers
15,45
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Answer 1

Answer:

The common factors of 15 and 45 are 15, 5, 3, 1, intersecting the two sets above. In the intersection factors of 15 ∩ factors of 45 the greatest element is 15. Therefore, the greatest common factor of 15 and 45 is 15.

Step-by-step explanation:

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Answer 2

Answer:

take the LCM of both and see the common factors that will be the HCF

step - by - step explanation:

LCM of 15 = 3×5

LCM of 45 = 3×3×5

HCF will be = 15

Common factors are 3 and 5