0
The factors of 18 are 1, 2, 3, 6, 9, and 18.
The factors of 81 are 1, 3, 9, 27, and 81.
The common factors are 1, 3, and 9. Therefore, the greatest common factor is 9.
You can also determine the greatest common factor from the prime factors.
The prime factors of 18 are 2, 3, and 3.
The prime factors of 81 are 3, 3, 3, and 3.
The prime factors in common are 3 and 3, so the greatest common factor is 3 x 3 = 9.
Add your answer:
Earn +20 pts
What is the greatest common factor of 16 72 and 81?
The greatest common factor of 16 72 and 81 is 1.
What is the greatest common factor of 18 and 81?
Factors of 18: 1 2 3 6 9 18 Factors of 81: 1 3 927 81 The GCF of 18 and 81 is 9.
What is the greatest common factor of 18 45 63 and 81?
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 18, 45, 63, and 81 is 9
What is the greatest common factor for 36 and 81?
The Greatest Common Factor (GCF) is: 9
What are the greatest common factors of 45 and 81?
Short answer: There are none. There is neither a greatest common factor nor common factors of a single number, such as 81, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 81 are 1, 3, 9, 27, and 81. Examples: The common factors of 18 and 81 are 1, 3, and 9; the greatest common factor is 9. The common factors of 20 and 81 are only 1; the greatest common factor is 1. The common factors of 39 and 81 are 1 and 3; the greatest common factor is 3. The common factors of 81 and 243 are 1, 3, 9, 27, and 81; the greatest common factor is 81.
Greatest common factor of 18 and 81?
The GCF is 9.
What is the greatest common factor of 52 and 81?
The greatest common factor of 52 and 81 is 1
What is the greatest common factor of 18 45 63 81?
9
What is the greatest common factor of 18 99 and 81?
The GCF is 9.
What is the Greatest Common Factor of 40 and 81?
The greatest common factor of 40 , 81 = 1
What is the greatest common factor of 81 and 189?
The greatest common factor of 81 and 189 is 27.
What is greatest common factor of 56 and 81?
The greatest common factor of 56 and 81 is 1.
What is 18 45 63 81 greatest common factor?
The GCF is 9.
What is the gcf of 81 36 and 18?
The greatest common factor of 36, 81 and 18 is 9
What is the greatest common factor of 81 108 and 117?
The Greatest Common Factor of 81, 108, 117: 9
What is the greatest common factor of 53 and 81?
The GCF of 53 and 81 is 1.
What two number has Greatest common factor of 9 and a sum of 99?
18 and 81
