How do you find GCF of 12 and 30?

1 Answer
Mar 3, 2018

6

Explanation:

Divide each number into different multiples.
12:
- 1×12
- 2×6
- 3×4

30:
- 1×30
- 2×15
- 3×10
- 5×6

The greatest common factor (the largest number that both numbers divide into evenly), is 6.
No other numbers higher than 6 in these sets can be divided from both 12 and 30 evenly.