Question

Which pair of numbers have a GCF of 7?

Answer 1

Which pair of numbers have a GCF of 7?

Choose all answers that are correct.


A.
21 and 3

B.
7 and 1

C.
7 and 14

D.
28 and 7

Answer 2

@Hero @texaschic101

Answer 3

@BishopPatton which do think is correct and why?

Answer 4

for A) 28= 1,2,4,7,14,28
7= 1,7
for B) 14 = 1,2,7,14
7= 1,7
for C) 21 = 1,3,7,21
3 = 1,3
for D) 7 = 1,7
1 = 1

Answer 5

THERE IS THAT NOW I GOTTA READ AND FIND OUT THE ANSWERS

Answer 6

sorry... caps was on

Answer 7

A. and D. I think

Answer 8

Why would D be a correct option?

Answer 9

I am confused

Answer 10

take a look at A...
21 -- 1,3,7,21
3 -- 1,3
so what is the GCF of these 2 numbers ?

Answer 11

as you can see....the GCF is not 7....so it is not A