@sammixboo . Which pair of numbers have a GCF of 3? Choose all answers that are correct.
A. 3 and 9
B. 18 and 15
C. 15 and 20
D. 6 and 9

Question

@sammixboo . Which pair of numbers have a GCF of 3? Choose all answers that are correct.
 A. 3 and 9 
B. 18 and 15
 C. 15 and 20 
D. 6 and 9

igreen · Answer

I believe the answer is D..I don't think 3 is included.

igreen · Answer

3 can't be included because if it is, that would mean that there aren't any numbers with a GCF of 3, it would be themselves.

shinalcantara · Answer

FACTORS for the choices
A) 3 = 1,3
    9 = 1,3,9
B) 18 = 1,2,3,6,9,18
    15 = 1,3,5,15
C) 15 = 1,3,,5,15
    20 = 1,2,4,5,10,20
D) 6 = 1,2,3,6
    9 =1,3,9
now what do you think has the greatest common factor of 3?

igreen · Answer

@shinalcantara I don't think you count 9 as a CF of 9.

igreen · Answer

Otherwise there can't be an answer to the question.

anonymous · Answer

|dw:1411143495215:dw| SCREAM!!!!!!!!