I am confused on this question

I want to plant 45 sunflower plants, 81 corn plants and 63 tomato plants in my garden. If I put the same number of plants in each row and each row has only one type of plant, what is the greatest number of plants I can put in one row?

Here is what I think
Factors of 45: 1, 3, 5, 9, 15, 45 81: 1, 3, 9, 27, 81 63: 1, 3, 7, 9, 21, 63

I can put 9 in each row

Is the answer 9 or not?

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  1. Corn plants has the greatest number of plants that can be put in one row that is 27. does this help or do you need something else?

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  2. oh but yeah i believe yes for it being 9

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  3. 45 = 3^2 * 5
    81 = 3^4
    63 = 3^2 * 7
    GCD = 3^2 = 9

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    oobleck
  4. super but i need the steps

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