Yes, it is.
Abnormal fear of the nubmer "13".
17 is a prime number because it has only two factors which are itself and one
8 divided by 159 answer would be a mixed nubmer = 0.050314465408805034
1 is neither a prime, nor a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
1 and 13. 13 is prime.
13 is a prime, so its prime factorization is: 13
13 is a prime number
13 is a Prime number.
13 is prime.
2n-2
The only prime factor of 13 is 13.
13 is prime and the factors of 13 are 1 and 13