Is 333 a prime number?

No, 333 is not a prime number. It is a composite number: its digits add up to 9, which is divisible by 3, so 333 is divisible by 3.

Why 333 is not prime

333 has divisors other than 1 and itself. The smallest is 3: 333 ÷ 3 = 111.

Prime factorization: 333 = 3 × 3 × 37 = 3² × 37.

Quick facts about 333

• Even or odd: odd.
• Nearest primes: 331 below and 337 above.
• Primes up to 333: 67.

Is it prime? Nearby numbers

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