Question

Find GCF(29, 49).
A) A) 1
B) B) 29
C) C) 49
D) D) 1421

Answer 1

49=29*1+20
29=20*1+9
20=9*2+2
9=2*4+1
2=1*2+0
so gcf =1

Answer 2

have you learned this method?

Answer 3

Im sure you can see the pattern
once we get to +0 you stop and take the number above it. here that is 1