Question

Find the HCF of each of the following using prime factorization method 129, 215 387

Answer 1

Given:

129, 215, 387

To find:

Find the HCF of each of the given numbers using the prime factorization method.

Solution:

• Before finding the HCF using the prime factorization method. first, let's know what are prime factors.
• Prime factors are the numbers that are divisible by 1 and the number itself.
• We can find HCF by using different methods in which the prime factorization method is one of them.

HCF of 129, 215, 387 using prime factorization method:

129 = 3 x 43

215 = 5 x 43

387 = 3 x 3 x 43

HCF of 129, 215, 387 = 43.

Hence, the HCF of 129, 215, 387 is 43.

Extra Learning:

Note: Refer to the attachment of HCF of 129, 215, 387 using the division method.

Answer 2

Answer:

43 is the correct answer

Step-by-step explanation:

3x43=129

5x43=215

3×3x43=387

The common factor is 43......