Question

find the HCF of 30,42​

Answer 1

Answer:

6

Hope this helps you:)

Answer 2

Answer:

Prime factorization of 30 is 5*3*2

Prime factorization of 42 is 7*3*2

HCF It means highest common factor between the two numbers

The highest common factor between 30 and 42 is 3*2=6

So,the HCF of 30 and 42 is 6.

Second example,

Find the prime factorization of 30

30 = 2 × 3 × 5

Find the prime factorization of 42

42 = 2 × 3 × 7

To find the HCF, multiply all the prime factors common to both numbers:

Therefore, HCF = 2 × 3

HCF = 6

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