Question

3. Find the HCF of each group of numbers by long division method.
325, 390, 455
​

Answer 1

Answer:

65

Step-by-step explanation:

Solution by Factorization:

The factors of 325 are: 1, 5, 13, 25, 65, 325

The factors of 390 are: 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

The factors of 455 are: 1, 5, 7, 13, 35, 65, 91, 455

Then the greatest common factor is 65.

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