No, five is a Prime number because there are only two whole numbers that when multiplied, equals five. (Those numbers are five and one.) In order for a number to be composite, it has to have factors other than itself and one.
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Yes, all whole numbers ending in five (except the number five itself) are composite.
its a composite number because 75 can be 5 x 15 = 75 so on and so forth
Composite. All whole numbers ending in five are composite.
Then it is 2310.
It is a prime.