It is: 6
The common factors of 42 and 273 are 1, 3, 7 and 21.
The common factors of 21 42 and 84 are 21
The common factors of 21, 42, and 56 are: 1 and 7
To work this out, you first have to split the numbers down into their prime factors: 42 = 2x3x7 23 = 23 There are no common prime factors. This means that the only common factor of 42 and 23 is 1.
It is: 6
It is 7
The GCF is 6.
The greatest common factor is 21
The factors of 30 are 2, 3, and 5 The factors of 42 are 2, 3, and 7 So, the highest common factor will be 2 x 3 = 6
The Greatest Common Factor (GCF) is: 6
The factors of 18 are: 1, 2, 3, 6, 9, 18.The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.The common factors are: 1, 2, 3, 6.The Greatest Common Factor (GCF) is: 6
To do this, the first step is to write the numbers as the product of their prime factors. In this case we have: 42 = 2x3x7 63 = 3x3x7 The next step is to identify common factors. In this case both numbers have a 3 and a 7 as factors. Take these numbers and multiply them together to find the HCF: 3x7 = 21 Thus the highest common factor of 42 and 63 is 21.
The highest common factor of all four numbers is 7
6 * 8 = 48 6 * 7 = 42 The highest common factor is 8.
Common factors of 42 and 87 are: 1 and 3.
The greatest common factor of 12 and 42 is 6.12 and 42's highest common factor is six.