Just 1.
The common factors of 55 and 99 are: 1 and 11
The common factors of 72 and 99 are 1, 3, and 9
The common factors of 36 and 99 are: 1, 3, 9
The common factors of 81 and 99 are: 1, 3, 9
The factors of 99 are 1, 3, 9, 11, 33 and 99. For them to be common, they need to be compared to another set of factors.
The common factors of 66 and 99 are: 1, 3, 11, and 33
All the common factors of 99 and 11 are: 1 and 11 .
The Highest Common Factor (HCF) of 99 is 99. This is because 99 is a prime number, meaning it only has two factors: 1 and 99. Since there are no other common factors between 99 and any other number, the HCF remains 99.
It is: 9702
Factors of 55 are: 1, 5, 11, and 55 Factors of 99 are: 1, 3, 9, 11, 33, and 99 "Common" factors are numbers that are factors of both. Common factors of 55 and 99 are: 1 and 11 .
The common factors of 99 and 121 are the numbers that can evenly divide both 99 and 121 without leaving a remainder. The factors of 99 are 1, 3, 9, 11, 33, and 99. The factors of 121 are 1, 11, and 121. Therefore, the only common factor of 99 and 121 is 1.
99 and 148 have no prime factors in common. The only common factor of 99 and 148 is 1, and 1 is not a prime number.