Is 2723 a prime number?
No, 2723 is not a prime number. It is divisible by 7: 2723 = 7 × 389.
Is 2723 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 √2723 ≈ 52.18. If none of them divides 2723, it is prime.
- 3
7 divides 2723 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 2723 = 7 \times 389 \]
Testing 2723 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 2723 ÷ 2 | leaves 1 |
| 3 | 2723 ÷ 3 | leaves 2 |
| 5 | 2723 ÷ 5 | leaves 3 |
| 7 | 2723 ÷ 7 | divides exactly (389) |
| 11 | 2723 ÷ 11 | leaves 6 |
| 13 | 2723 ÷ 13 | leaves 6 |
| 17 | 2723 ÷ 17 | leaves 3 |
| 19 | 2723 ÷ 19 | leaves 6 |
| 23 | 2723 ÷ 23 | leaves 9 |
| 29 | 2723 ÷ 29 | leaves 26 |
| 31 | 2723 ÷ 31 | leaves 26 |
| 37 | 2723 ÷ 37 | leaves 22 |
Questions
Is 2723 a prime number?
No, 2723 is not a prime number. It is divisible by 7: 2723 = 7 × 389.
What is the next prime after 2723?
2729.
What is the prime number before 2723?
2719.
What are the factors of 2723?
1, 7, 389, 2723.