Question

Find the HCF of 30, 40

Answer 1

factors of 30 = 1,2,3,5,6,10,30

factors of 40 = 1,2,4,5,8,10,40

∴HCF=10

Answer 2

Answer:

HCF (30,40) = 10

Step-by-step explanation:

Resolving 30 and 40 into product of prime factors,

30 = 2×3×5

40 = 2×2×2×5 = 2³ × 5¹

Now ,

HCF( 30,40) = 2 × 5 = 10

/* Product of the smallest power of each common prime factors of the numbers */

Therefore,

HCF (30,40) = 10

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