Question

What is the greatest common factor (GCF) of 16 and 21

Answer 1

Answer:

1

Step-by-step explanation:

The GFC of 16 and 21 is 1 because 1 is the only number they have in common, or the same.

I hope it helps! Have a great day!

Lilac~

Answer 2

Answer:

1

Step-by-step explanation:

Let's start by prime factorizing (finding the prime factors) of 16 and 21:

$16=4*4=2*2*2*2=2^4$

$21=3*7$

We can see that they DO NOT have any common factors, meaning that their greatest common factor is 1.