No, 204 is not a prime number. It is a composite number: it is even, so it is divisible by 2.
204 has divisors other than 1 and itself. The smallest is 2: 204 ÷ 2 = 102.
Prime factorization: 204 = 2 × 2 × 3 × 17 = 2² × 3 × 17.
| Number | Prime? |
|---|---|
| 200 | No, 2 × 2 × 2 × 5 × 5 |
| 201 | No, 3 × 67 |
| 202 | No, 2 × 101 |
| 203 | No, 7 × 29 |
| 205 | No, 5 × 41 |
| 206 | No, 2 × 103 |
| 207 | No, 3 × 3 × 23 |
| 208 | No, 2 × 2 × 2 × 2 × 13 |
More about 204: 204 in binary.
Another number? Use the prime number checker for any value, or see the list of prime numbers.