Question

Find the the HCF of 45 25 and 65 by listening factors

Answer 1

Answer:

5

Step-by-step explanation:

45 - 5*3*3

25 - 5*5

65 - 5*5*3

HCF = 5

Answer 2

The HCF of 45, 25, and 65 is 5.

• Our objective is to find the HCF of 45, 25, and 65 by listing the factors.
• That is, we solve this problem using the method of prime factorization.
• A number is factored using prime numbers, or primes, in the process known as prime factorization.
• A number is factored using prime numbers, or primes, in the process known as prime factorization.
• A prime number is any number bigger than one that can only be divided by itself and by one.
• The prime factorization of the numbers are as follows:
      45 = 3 × 3 × 5
      25 = 5 × 5
      65 = 5 × 13
• The common factor is 5.
• Hence, the HCF of 45, 25, and 65 is 5.

Correction in question: Find the the HCF of 45 25 and 65 by listing factors

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