Yes. It is divisible only by itself, and 1. All prime numbers are ONLY divisible by themselves, and 1.
The list begins, 1,2,3,5,7.... maybe it could be fun for you to figure out the numbers between there and 257.
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A prime number is a number that is divisible only by 1 and itself; it has no other factors. A composite number is a number that is divisible by more than 2 numbers. The only factors of 79 are 1 and itself. Therefore, 79 is a prime number.
A prime number is a natural number that has no natural number as a factor other than itself or 1. An irrational number is not a natural number, so an irrational number can't be prime.
29 is a prime number. There are no prime numbers between 29 and 30.
79 because its a prime number
53 is a prime number53 is a prime number.