What is the hcf for 21 42 84?

Answer 1

HCF(21, 42, 84) = 21.

Answer 2

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.

Answer 3

Oh honey, the highest common factor (HCF) for 21, 42, and 84 is 21. It's like finding the best dessert at a buffet - you pick the biggest one that all of them can share. So, 21 is the lucky winner in this number game.

Answer 4

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.

Answer 5

The GCF is 21.