Question

What is the GCF of 16 and 72?

A.
8

B.
2

C.
16

D.
4

Answer 1

does 16 go in to 72 evenly?

Answer 2

nope

Answer 3

then it isn't 16
how about 8?

Answer 4

yea

Answer 5

ok, then we have it

Answer 6

what about this one Which pair of numbers is relatively prime?

A.
21 and 39

B.
15 and 27

C.
12 and 54

D.
10 and 21

Answer 7

3 goes in to both 21 and 39, so it is not that one

Answer 8

same for 15 and 27, 3 goes in to both

Answer 9

12 and 54 are obviously not relatively prime, since they are both even (divisible by 2)

Answer 10

so d

Answer 11

that leaves 10 and 21
\(10=2\times 5\) and \(21=3\times 7\) no primes in common aka relatively prime

Answer 12

yeah, D

Answer 13

you good from there?

Answer 14

yes and thank you

Answer 15

yw
now i have a question

Answer 16

okay shoot

Answer 17

what do you use when you go coon hunting??

Answer 18

umm okay u will were a head light and have a hound dog for me and my daddy we use blueticks and u need a gun thats basically it!

Answer 19

i meant what kind of rifle?

Answer 20

we use a 22 rifle

Answer 21

thanks!

Answer 22

y?????

Answer 23

u must tell me