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
Common factors of 18 and 42 are: 1, 2, 3, and 6.
It is 6
It is: 504
Common factors of 48 and 42 are: 1, 2, 3, and 6.
It is: 6
The GCF is 6.
It is 7
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
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