# Is 51 a Prime Number?

No, **51** is not a *prime number*, it is a composite number.

### Why 51 is not a prime number?

Because **51** has divisors rather than 1 and itself.
51 can be divided by 3 and 17.

Prime factorization of *51* (list of divisors):

*The next prime number* of 51 is **53**

*The previous prime* number of 51 is **47**.

### Related Prime Numbers

Biggest 10 prime numbers smaller than **51**

Smallest 10 prime numbers bigger than **51**

### Related Non-Prime Numbers

Biggest 10 composite numbers smaller than **51**

Smallest 10 composite numbers bigger than **51**