No, 183 is not a prime number. It is a composite number: its digits add up to 12, which is divisible by 3, so 183 is divisible by 3.
183 has divisors other than 1 and itself. The smallest is 3: 183 ÷ 3 = 61.
Prime factorization: 183 = 3 × 61.
| Number | Prime? |
|---|---|
| 179 | Yes |
| 180 | No, 2 × 2 × 3 × 3 × 5 |
| 181 | Yes |
| 182 | No, 2 × 7 × 13 |
| 184 | No, 2 × 2 × 2 × 23 |
| 185 | No, 5 × 37 |
| 186 | No, 2 × 3 × 31 |
| 187 | No, 11 × 17 |
More about 183: factors of 183 · square root of 183 · 183 in binary.
Another number? Use the prime number checker for any value, or see the list of prime numbers.