Question

Use the lists of factors to answer the question. Factors of 9: 1, 3, 9 Factors of 15: 1, 3, 5, 15 Factors of 21: 1, 3, 7, 21 Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40

Answer 1

9 and 40

21 and 40

Explanation:

just took the test on edg. 2020

Answer 2

B: 9 and 40

E: 21 and 40