The GCF is 3.
Common factors of 21 and 27 are: 1 and 3.
The GCF is 9.
The common factors of 36 and 27 are 1, 3 & 9; the highest common factor is 9.
Common factors of 27 and 30 are: 1 and 3.
27 is a prime number. So it's factors are 1 and 27. 22 factors are 1, 2, and 11. So, the highest common factor of 22 and 27 is 1.
The highest common factor is 3
15=3*5 27=3*3*3 highest common factor=3
27 and 35's highest common factor is one.
The factors of 15 are: 1, 3, 5, 15.The factors of 27 are: 1, 3, 9, 27.The common factors are: 1, 3.The Greatest Common Factor (GCF) is: 3
The highest common factor of 54 and 27 is 27
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.
1 is the highest common factor. 27 is 3 x 3 x 3. 91 is 7 x 13. So there are no common factors other than 1.