Two of the three numbers shown below are relatively prime. The factors of each number are listed to help you. Identify the two relatively prime numbers. (Choose 2)

(36) 1, 2, 3, 4, 6, 9, 12, 18, 36
(39) 1, 3, 13, 39
(80) 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

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