No, 82 is not a prime number. It is a composite number: it is even, so it is divisible by 2.
82 has divisors other than 1 and itself. The smallest is 2: 82 ÷ 2 = 41.
Prime factorization: 82 = 2 × 41.
| Number | Prime? |
|---|---|
| 78 | No, 2 × 3 × 13 |
| 79 | Yes |
| 80 | No, 2 × 2 × 2 × 2 × 5 |
| 81 | No, 3 × 3 × 3 × 3 |
| 83 | Yes |
| 84 | No, 2 × 2 × 3 × 7 |
| 85 | No, 5 × 17 |
| 86 | No, 2 × 43 |
More about 82: factors of 82 · 82 squared · square root of 82 · 82 in binary · 82 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.