What is the greatest common factor of 64 and 18
576
4
2
64

The answer would be C) 2 since 2 can go into both 64 and 18 by multiplication and division.

Let's start by finding all the factors of 64 and 18.

64 / 2 = 32
32 / 2 = 16
16 / 2 = 8
 8  / 2 = 4
 4  / 2 = 2

This means:
64 = 2 * 2 * 2 * 2 * 2 * 2 = 2^6

18 / 2 = 9
 9  / 3 = 3

This means:
18 = 2 * 3 * 3

The only factor that they both have in common is 2, so 2 is the GCF.

11/2.2 = 5 inches for the length 8.5/2.2= 3.86 inches for the width