No, 495 is not a prime number. It is a composite number: it ends in 5, so it is divisible by 5.
495 has divisors other than 1 and itself. The smallest is 3: 495 ÷ 3 = 165.
Prime factorization: 495 = 3 × 3 × 5 × 11 = 3² × 5 × 11.
| Number | Prime? |
|---|---|
| 491 | Yes |
| 492 | No, 2 × 2 × 3 × 41 |
| 493 | No, 17 × 29 |
| 494 | No, 2 × 13 × 19 |
| 496 | No, 2 × 2 × 2 × 2 × 31 |
| 497 | No, 7 × 71 |
| 498 | No, 2 × 3 × 83 |
| 499 | Yes |
Another number? Use the prime number checker for any value, or see the list of prime numbers.