No, 339 is not a prime number. It is a composite number: its digits add up to 15, which is divisible by 3, so 339 is divisible by 3.
339 has divisors other than 1 and itself. The smallest is 3: 339 ÷ 3 = 113.
Prime factorization: 339 = 3 × 113.
| Number | Prime? |
|---|---|
| 335 | No, 5 × 67 |
| 336 | No, 2 × 2 × 2 × 2 × 3 × 7 |
| 337 | Yes |
| 338 | No, 2 × 13 × 13 |
| 340 | No, 2 × 2 × 5 × 17 |
| 341 | No, 11 × 31 |
| 342 | No, 2 × 3 × 3 × 19 |
| 343 | No, 7 × 7 × 7 |
Another number? Use the prime number checker for any value, or see the list of prime numbers.