34.9k views
17 votes
Find all the common factors of 9 and 15.
A) 1, 3
B) 1, 3, 9
C) 1, 3, 5, 9

User Maschina
by
7.9k points

1 Answer

5 votes

Answer:

A common factor is a whole number which is a factor of two or more numbers.


factors \: of \: 9 = 1 * 3 * 3


factors \: of \: 15 = 1 * 3 * 5

since both of the numbers have only 1 and 3 in common.

therefore ,

Option A is correct.

______________________________________

______________________________________

Additional information

★ The highest common factor (HCF) is the greatest factor that will divide into two or more numbers.

★ The lowest common multiple (LCM) is the smallest multiple that is common to two or more numbers.

hope helpful :D

User Prashant Bhate
by
7.9k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories