No, 195 is not a prime number. It is a composite number: it ends in 5, so it is divisible by 5.
195 has divisors other than 1 and itself. The smallest is 3: 195 ÷ 3 = 65.
Prime factorization: 195 = 3 × 5 × 13.
| Number | Prime? |
|---|---|
| 191 | Yes |
| 192 | No, 2 × 2 × 2 × 2 × 2 × 2 × 3 |
| 193 | Yes |
| 194 | No, 2 × 97 |
| 196 | No, 2 × 2 × 7 × 7 |
| 197 | Yes |
| 198 | No, 2 × 3 × 3 × 11 |
| 199 | Yes |
More about 195: factors of 195 · square root of 195 · 195 in binary.
Another number? Use the prime number checker for any value, or see the list of prime numbers.