The Highest Common Factor (HCF) of 63 and 21 is 21. To find the HCF, you can list the factors of both numbers and find the highest number that divides both evenly. In this case, the factors of 63 are 1, 3, 7, 9, 21, and 63, while the factors of 21 are 1, 3, 7, and 21. The highest number that appears in both lists is 21, making it the HCF.
The GCF is 21.
The GCF is 7.
It is: 21
The GCF is 21.
The GCF is 21.
What is the h c f of 51 63 and 21
It is 1 but the HCF is 21
The hcf is 21
First you need to break the numbers into their prime factors. In this case we get: 63 = 3x3x7 21 = 3x7 The next step is to identify any common prime factors. In this case both have a 3 and a 7 as prime factors. Multiply these together and you get 3x7 = 21. This is the HCF. To find the LCM you just multiply the numbers together and divide by the HCF. 63x21/21 = 63 Thus 63 is the LCM.
HCF(40, 63) = 1
The GCF is 9.
21. 63 = 32 x 7 84 = 22 x 3 x 7 hcf = 3 x 7 = 21