Question

What is the greatest common factor of 12 and 30? (1 point) 2 3 6 12

Answer 1

the answer is six 6

Explanation:

6 x 2=12

6 x 5=30

d is wrong because 12 cannot be divided by 30. a and b are wrong because the question is looking for the greatest meaning the highest number, not the least.

Answer 2

To find the greatest common factor or GCF, first factor 12 and 30 and find factors that are both present in both numbers.
12 = 2*2*3
30 = 2*3*5
Both have a common factor of 2*3 which is 6, and since it is present in both numbers and is the greatest, it is the GCF.
The GCF of 12 and 30 is 6. Hope this helps.