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Q: Why 85 a composite number?

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85 is composite.

85 is composite.

The number 85 is composite. (5 x 17 = 85)

It is composite.

it is a composite

85 is composite.

yes it is

Kai wrote the number 85 on the board is 85 prime or composite

yes because it is divisible by 1,5&85.

85 is not a prime number because it is divisible by 5. This means it is a composite number.

85 is a composite number because numbers other then 1 and itself equally go into it. 5 x 17 = 85, so 5 and 17 both go into 85 making it a composite number. (All numbers ending in 5 are composite, because 5 goes into them.)

85 is a composite number. Other than itself and 1, it is also divisible by 5 and 17.

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