What is the greatest common factor of 63 42 and 21?

Answer 1

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.

The greatest common factor of 21, 42, and 63 is 21
The GCF is 21.
The GCF is 21.

Answer 2

To find the greatest common factor (GCF) of 63, 42, and 21, we need to identify the largest number that divides evenly into all three numbers. The factors of 63 are 1, 3, 7, 9, 21, and 63. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 21 are 1, 3, 7, and 21. The largest number that is common to all three lists is 21, making the GCF of 63, 42, and 21 equal to 21.

Answer 3

Oh, dude, the greatest common factor of 63, 42, and 21 is 21. Like, it's the largest number that divides evenly into all three of those numbers. So, if you ever need to split those numbers up into equal groups, 21 is your guy.

Answer 4

Well, honey, the greatest common factor of 63, 42, and 21 is 21. It's like finding the biggest slice of cake that all three numbers can share without any drama. So, grab a fork and enjoy that GCF!

Answer 5

Well, honey, the greatest common factor of 63, 42, and 21 is 21. It's like finding the biggest slice of pie that all three numbers can share without any leftovers. So, grab a fork and dig in!

Answer 6

The GCF is 21.

Answer 7

The GCF is 21.

Answer 8

GCF(63, 21, 42) = 21.

Answer 9

7