Question

. Find the HCF of the given numbers:
(2) 42, 36 (b) 21, 40
(e) 25, 125 (f) 17, 27
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Answer 1

$\huge\mathbb\orange{ANSWER!!!!}$

(a)

• 42 , 36

• 42 = 2 × 3 × 7

• 36 = 2 × 2 × 3 × 3

• HCF = 2 × 3

• HCF = 6

(b)

• 21 , 40

• 21 = 3 × 7 × 1

• 40 = 2 × 2 × 2 × 5 × 1

• HCF = 1

(c)

• 25 , 125

• 25 = 5 × 5

• 125 = 5 × 5 × 5

• HCF = 5 × 5

• HCF = 25

(d)

• 17 , 27

• 17 = 17 × 1

• 27 = 3 × 3 × 3 × 1

• HCF = 1