# Which of the following is a prime number?

A prime number (or a prime) is a natural number or positive integer greater than 1 that has no positive divisors (natural numbers) other than 1 and itself. 212 is divisible by 2 (and other natural numbers such as 106), 485 is divisible by 5 (and other natural numbers such as 97) and 573 is divisible by 3 (and other natural numbers such as 191). The number 313 is only divisible by 1 and itself.

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