Is 329 a prime number?
No, 329 is not a prime number. It is divisible by 7: 329 = 7 × 47.
Is 329 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 √329 ≈ 18.14. If none of them divides 329, it is prime.
- 3
7 divides 329 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 329 = 7 \times 47 \]
Testing 329 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 329 ÷ 2 | leaves 1 |
| 3 | 329 ÷ 3 | leaves 2 |
| 5 | 329 ÷ 5 | leaves 4 |
| 7 | 329 ÷ 7 | divides exactly (47) |
| 11 | 329 ÷ 11 | leaves 10 |
| 13 | 329 ÷ 13 | leaves 4 |
| 17 | 329 ÷ 17 | leaves 6 |
Questions
Is 329 a prime number?
No, 329 is not a prime number. It is divisible by 7: 329 = 7 × 47.
What is the next prime after 329?
331.
What is the prime number before 329?
317.
What are the factors of 329?
1, 7, 47, 329.