Explanation:

To find the Highest Common Factor (HCF) of 364 and 724, follow these steps:

- List the factors of 364: 1, 2, 4, 7, 14, 26, 28, 52, 91, 182, 364.

- List the factors of 724: 1, 2, 4, 181, 362, 724.

- Identify common factors: 1, 2, 4.

- The greatest common factor is 4.

Correct Answer: Option 1 - 4

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