What are the greatest common factors between 18 and 21?

Question

asked May 2, 2021 37.0k views

1 Answer

Rui Barradas · Answer 1 · 2021-05-08T07:03:36+0000

Answer:

1, 2, 3, 6, 9, 18. Factors of 21: 1, 3, 7. The highest number that both sets contain is 3, so the GCF will be 3.

Explanation: