Question

Find the highest odd number that is a factor of 60 and a factor of 90

Answer 1

Step-by-step explanation:

We found the factors and prime factorization of 60 and 90. The biggest common factor number is the GCF number. So the greatest common factor 60 and 90 is 30.

Answer 2

Given: The numbers 60 and 90.

To find: The highest odd number that is a factor of these numbers.

Solution:

• The question demands the highest odd number that is a factor of 60 and a factor of 90.
• H.C.F. is the short form of Highest Common Factor.
• So, H.C.F can be used to find the solution.
• The factors of 60 are as follows,

        $60 = 2 *2 *3*5$

• The factors of 90 are as follows,

        $90 = 2 *3 *3*5$

• The highest common factor between them which is an odd number is 5.

Therefore, the highest odd number that is a factor of 60, and a factor of 90 is 5.