If a prime product and a composite product are 36 and 15, then the prime number is () and the composite number is ()

The prime number is 3, and the total number is 12. You think, the sum of the two numbers is 15, so the two numbers must be less than 15, right. Then the prime numbers within 15 are 1, 2, 3, 5, 7, 11, and 13. The total numbers within 15 are 4, 6, 8, 9, 10, 12, and 14. The decomposition of 36 can be written as 1x36, 2x18, 3x12, 4x9

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