0
The greatest common factor of 21 and 27 is 3 because that is the highest number that goes into 21 and 27.
To find the highest common factor of two numbers, you first have to break them down into their prime factors. In this case, the prime factors of 21 and 27 are:
21 = 3x7
27 = 3x3x3
The next step is to identify any common factors. In this case, the only common prime factor is 3. Thus, the highest common factor of 21 and 27 is 3.
Still curious? Ask our experts.
Chat with our AI personalities
Lao
Rafa
Ezra
Add your answer:
Earn +20 pts
What is the greatest common factor of 21 27 and 39?
The GCF of 21, 27, and 39 is 3.
What is the greatest common factor of 15 21 and 27?
Answer: 3Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 15 are 1, 3, 5, and 15.The factors of 21 are 1, 3, 7, and 21.The factors of 27 are 1, 3, 9, and 27.The common factors are 1 and 3. Therefore, the greatest common factor is 3.
What are the greatest common factor of 21 and 27 81?
The HCF or GCF is 3.
What is a the greatest common factor of 27 and 36?
The greatest common factor of 27 and 36 is 9.
What is the greatest common factor of 14 and 27?
The greatest common factor of 14 and 27 is 1.
