Is 7443 a prime number?
No, 7443 is not a prime number. It is divisible by 3: 7443 = 3 × 2481.
Is 7443 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 √7443 ≈ 86.27. If none of them divides 7443, it is prime.
- 3
3 divides 7443 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 7443 = 3^{2} \times 827 \]Testing 7443 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 7443 ÷ 2 | leaves 1 |
| 3 | 7443 ÷ 3 | divides exactly (2481) |
| 5 | 7443 ÷ 5 | leaves 3 |
| 7 | 7443 ÷ 7 | leaves 2 |
| 11 | 7443 ÷ 11 | leaves 7 |
| 13 | 7443 ÷ 13 | leaves 7 |
| 17 | 7443 ÷ 17 | leaves 14 |
| 19 | 7443 ÷ 19 | leaves 14 |
| 23 | 7443 ÷ 23 | leaves 14 |
| 29 | 7443 ÷ 29 | leaves 19 |
| 31 | 7443 ÷ 31 | leaves 3 |
| 37 | 7443 ÷ 37 | leaves 6 |
Questions
Is 7443 a prime number?
No, 7443 is not a prime number. It is divisible by 3: 7443 = 3 × 2481.
What is the next prime after 7443?
7451.
What is the prime number before 7443?
7433.
What are the factors of 7443?
1, 3, 9, 827, 2481, 7443.