Question : The HCF of 3888 and 3969 is:

Option 1: 81

Option 2: 73

Option 3: 83

Option 4: 71

Question : What is the greatest positive integer that divides 554, 714, and 213 leaving the remainder 43, 57, and 67 respectively?

Option 1: 95

Option 2: 71

Option 3: 83

Option 4: 73

Question : Find the HCF of 69, 96, and 99.

Option 1: 3

Option 2: 9

Option 3: 1

Option 4: 6

Question : Find the HCF of 364 and 724.

Option 1: 4

Option 2: 2

Option 3: 6

Option 4: 364

Question : Find the HCF of 78, 84, 90 and 112.

Option 1: 1

Option 2: 2

Option 3: 5

Option 4: 7

Question : What is the HCF of (x⁶ + 1) and (x⁴ - 1)?

Option 1: 1

Option 2: (1 + x)

Option 3: (1 - x²)

Option 4: (1 + x²)