No, 69 is not a prime number. It is a composite number: its digits add up to 15, which is divisible by 3, so 69 is divisible by 3.
69 has divisors other than 1 and itself. The smallest is 3: 69 ÷ 3 = 23.
Prime factorization: 69 = 3 × 23.
| Number | Prime? |
|---|---|
| 65 | No, 5 × 13 |
| 66 | No, 2 × 3 × 11 |
| 67 | Yes |
| 68 | No, 2 × 2 × 17 |
| 70 | No, 2 × 5 × 7 |
| 71 | Yes |
| 72 | No, 2 × 2 × 2 × 3 × 3 |
| 73 | Yes |
More about 69: factors of 69 · 69 squared · square root of 69 · 69 in binary · 69 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.