No, 6 is not a prime number. It is a composite number: it is even, so it is divisible by 2.
6 has divisors other than 1 and itself. The smallest is 2: 6 ÷ 2 = 3.
Prime factorization: 6 = 2 × 3.
| Number | Prime? |
|---|---|
| 2 | Yes |
| 3 | Yes |
| 4 | No, 2 × 2 |
| 5 | Yes |
| 7 | Yes |
| 8 | No, 2 × 2 × 2 |
| 9 | No, 3 × 3 |
| 10 | No, 2 × 5 |
More about 6: factors of 6 · 6 squared · square root of 6 · 6 in binary · 6 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.