Is 4043 a prime number?
No, 4043 is not a prime number. It is divisible by 13: 4043 = 13 × 311.
Is 4043 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 √4043 ≈ 63.58. If none of them divides 4043, it is prime.
- 3
13 divides 4043 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 4043 = 13 \times 311 \]
Testing 4043 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 4043 ÷ 2 | leaves 1 |
| 3 | 4043 ÷ 3 | leaves 2 |
| 5 | 4043 ÷ 5 | leaves 3 |
| 7 | 4043 ÷ 7 | leaves 4 |
| 11 | 4043 ÷ 11 | leaves 6 |
| 13 | 4043 ÷ 13 | divides exactly (311) |
| 17 | 4043 ÷ 17 | leaves 14 |
| 19 | 4043 ÷ 19 | leaves 15 |
| 23 | 4043 ÷ 23 | leaves 18 |
| 29 | 4043 ÷ 29 | leaves 12 |
| 31 | 4043 ÷ 31 | leaves 13 |
| 37 | 4043 ÷ 37 | leaves 10 |
Questions
Is 4043 a prime number?
No, 4043 is not a prime number. It is divisible by 13: 4043 = 13 × 311.
What is the next prime after 4043?
4049.
What is the prime number before 4043?
4027.
What are the factors of 4043?
1, 13, 311, 4043.