The highest common factor (HCF) for 21, 42, and 84 is 21. To find the HCF, you can calculate the prime factorization of each number: 21 = 3 x 7, 42 = 2 x 3 x 7, and 84 = 2 x 2 x 3 x 7. Then, identify the common prime factors among the numbers, which are 3 and 7. Finally, multiply these common prime factors together to get the HCF, which is 21.
Oh, what a happy little question! The highest common factor (HCF) of 21, 42, and 84 is 21. You see, 21 is the largest number that can evenly divide all three of these numbers, creating a harmonious relationship between them. Just like adding a touch of white to a painting to bring all the colors together, finding the HCF helps us see the beautiful connection between these numbers.
It is: 21
hcf = 42, lcm = 84.
7
The GCF is 2.
The GCF is 24.
The GCF is 42.
The GCF is 7.
The least common multiple of 14 and 21 is 42.14, 28, 42, 56 ...21, 42, 63, 84, ...
The GCF is 7.
The GCF is 21.
The Highest Common Factor (HCF) of 42, 49, and 84 is 7. To find the HCF, you need to factorize each number into its prime factors. The prime factors of 42 are 2 x 3 x 7, the prime factors of 49 are 7 x 7, and the prime factors of 84 are 2 x 2 x 3 x 7. The HCF is the product of the common prime factors raised to the lowest power they appear in any of the numbers, which in this case is 7.
It is 7