Is 30 a prime number?

No, 30 is not a prime number. It is a composite number: it is even, so it is divisible by 2.

Why 30 is not prime

30 has divisors other than 1 and itself. The smallest is 2: 30 ÷ 2 = 15.

Prime factorization: 30 = 2 × 3 × 5.

Quick facts about 30

Even or odd: even.
Nearest primes: 29 below and 31 above.
Primes up to 30: 10.

Is it prime? Nearby numbers

Number	Prime?
26	No, 2 × 13
27	No, 3 × 3 × 3
28	No, 2 × 2 × 7
29	Yes
31	Yes
32	No, 2 × 2 × 2 × 2 × 2
33	No, 3 × 11
34	No, 2 × 17

More about 30: factors of 30 · 30 squared · square root of 30 · 30 in binary · 30 in Roman numerals.

Another number? Use the prime number checker for any value, or see the list of prime numbers.