- 8
- 9
- 7
- 4

Option 4 : 4

**Given:**

The given numbers are 33, 81, and 173

**Calculation**

HCF of {(81 - 33), (173 - 81), (173 -33)}

48, 92, 140

Take a difference 92 – 48 = 44

44 is the factor of 11 and 4

But 11 not dived to 140

**Hence, the greater number is 4 that will divide each of 33, 81 and 173 and gives the same remainder.**

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