215 is a composite number because it has other factors aside from 1 and itself. The other factors of 215 are 5 and 43.
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215 is not a prime number. It is a composite number. A prime number has exactly two factors: 1 (unity) and itself. A composite number has more than two factors. Any number that ends with 5 or 0 has 5 as a factor. 215 is divisible by 5, so it is a composite number.
The number is not COMPOSITE. Instead, it is a prime number.
Composite (the only even number that is prime is2).
Composite
It is 1 that is neither a prime or a composite number The number 1 is neither prime nor composite.