No, 1,001 is not a prime number. It is a composite number: 1,001 = 7 × 143.
1,001 has divisors other than 1 and itself. The smallest is 7: 1,001 ÷ 7 = 143.
Prime factorization: 1,001 = 7 × 11 × 13.
| Number | Prime? |
|---|---|
| 971 | Yes |
| 991 | Yes |
| 997 | Yes |
| 1,000 | No, 2 × 2 × 2 × 5 × 5 × 5 |
| 1,009 | Yes |
| 1,024 | No, 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 |
| 1,049 | Yes |
| 1,111 | No, 11 × 101 |
Another number? Use the prime number checker for any value, or see the list of prime numbers.