No, 162 is not a prime number. It is a composite number: it is even, so it is divisible by 2.
162 has divisors other than 1 and itself. The smallest is 2: 162 ÷ 2 = 81.
Prime factorization: 162 = 2 × 3 × 3 × 3 × 3 = 2 × 3⁴.
| Number | Prime? |
|---|---|
| 158 | No, 2 × 79 |
| 159 | No, 3 × 53 |
| 160 | No, 2 × 2 × 2 × 2 × 2 × 5 |
| 161 | No, 7 × 23 |
| 163 | Yes |
| 164 | No, 2 × 2 × 41 |
| 165 | No, 3 × 5 × 11 |
| 166 | No, 2 × 83 |
More about 162: factors of 162 · square root of 162 · 162 in binary.
Another number? Use the prime number checker for any value, or see the list of prime numbers.