No, 207 is not a prime number. It is a composite number: its digits add up to 9, which is divisible by 3, so 207 is divisible by 3.
207 has divisors other than 1 and itself. The smallest is 3: 207 ÷ 3 = 69.
Prime factorization: 207 = 3 × 3 × 23 = 3² × 23.
| Number | Prime? |
|---|---|
| 203 | No, 7 × 29 |
| 204 | No, 2 × 2 × 3 × 17 |
| 205 | No, 5 × 41 |
| 206 | No, 2 × 103 |
| 208 | No, 2 × 2 × 2 × 2 × 13 |
| 209 | No, 11 × 19 |
| 210 | No, 2 × 3 × 5 × 7 |
| 211 | Yes |
More about 207: 207 in binary.
Another number? Use the prime number checker for any value, or see the list of prime numbers.