Question

Find the HCF of the following numbers - a. 17,18 b. 10,20​

Answer 1

the HCF of 17 and 18 is 1.

the HCF of 10 and 20 is the HCF of 10 and 20 is 10

Answer 2

Answer:

Nice question I've underlined the common numbers & I've also written the HCF.

Step-by-step explanation:

a.Factors of 17 = 1, 17

Factors of 18 = 1, 2, 3, 6, 9, 18

HCF = only 1

b.Factors of 10 = 1, 2, 5, 10

Factors of 20 = 1, 2, 4, 5, 10, 20

HCF = 10

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