Question

Find the greatest common factor of 21 and 33

Answer 1

Answer:

$GCF=3$

Step-by-step explanation:

1)  List the factors of each number.

Factors of 21: $1,3,7,21$

Factors of 33: $1,3,11,33$

2) Find the largest number that is shared by all rows above. This is the GCF.

$GCF=3$

Answer 2

Answer:

As you can see when you list out the factors of each number, 3 is the greatest number that 21 and 33 divides into.

Step-by-step explanation:

As you can see when you list out the factors of each number, 3 is the greatest number that 21 and 33 divides into.