Answer:
https://app.edmentum.com/assessments-delivery/testingImages//geometry/945789030-35047.gif
Step-by-step explanation:
18 is the answer
We know this because The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36
The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54
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