The product of two natural numbers must be a composite number______ (judge right or wrong)

1 and 2 are natural numbers, but 1 × 2 = 2, 2 is prime, so it is wrong to say that the product of two natural numbers must be a composite number

There are four natural numbers less than 10, and their product is 360. It is known that there is only one composite of the four numbers. What are the four numbers?

Because 360 = 2 × 2 × 2 × 3 × 3 × 5 = 8 × 3 × 3 × 5, the four numbers that meet the conditions are 8, 3, 3 and 5

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