8. A school principal is planning a trip to the zoo for the seventh and eighth graders. There will be 90 seventh graders and 75 eighth graders going on the trip. The principal wants to divide all the students into groups of equal
factorization to find the greatest common factor of 75 and 90 to determine the size of the groups.


Express 75 as a product of prime numbers.

• Express 90 as a product of prime numbers.

Show or explain how to find the greatest common factor of 75 and 90 using prime factors.
4

If the greatest common factor of 75 and 90 will equal the number of students who will be in each group, determine the number of groups that will be formed.
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Show your work or write an explanation to support