No, 209 is not a prime number. It is a composite number: 209 = 11 × 19.
209 has divisors other than 1 and itself. The smallest is 11: 209 ÷ 11 = 19.
Prime factorization: 209 = 11 × 19.
| Number | Prime? |
|---|---|
| 205 | No, 5 × 41 |
| 206 | No, 2 × 103 |
| 207 | No, 3 × 3 × 23 |
| 208 | No, 2 × 2 × 2 × 2 × 13 |
| 210 | No, 2 × 3 × 5 × 7 |
| 211 | Yes |
| 212 | No, 2 × 2 × 53 |
| 213 | No, 3 × 71 |
More about 209: 209 in binary.
Another number? Use the prime number checker for any value, or see the list of prime numbers.