Is 9789 a prime number?
No, 9789 is not a prime number. It is divisible by 3: 9789 = 3 × 3263.
Is 9789 prime?
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A prime number has exactly two factors: 1 and itself.
- 2
It is enough to test the primes up to √9789 ≈ 98.94. If none of them divides 9789, it is prime.
- 3
3 divides 9789 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 9789 = 3 \times 13 \times 251 \]
Testing 9789 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 9789 ÷ 2 | leaves 1 |
| 3 | 9789 ÷ 3 | divides exactly (3263) |
| 5 | 9789 ÷ 5 | leaves 4 |
| 7 | 9789 ÷ 7 | leaves 3 |
| 11 | 9789 ÷ 11 | leaves 10 |
| 13 | 9789 ÷ 13 | divides exactly (753) |
| 17 | 9789 ÷ 17 | leaves 14 |
| 19 | 9789 ÷ 19 | leaves 4 |
| 23 | 9789 ÷ 23 | leaves 14 |
| 29 | 9789 ÷ 29 | leaves 16 |
| 31 | 9789 ÷ 31 | leaves 24 |
| 37 | 9789 ÷ 37 | leaves 21 |
Questions
Is 9789 a prime number?
No, 9789 is not a prime number. It is divisible by 3: 9789 = 3 × 3263.
What is the next prime after 9789?
9791.
What is the prime number before 9789?
9787.
What are the factors of 9789?
1, 3, 13, 39, 251, 753, 3263, 9789.