Is 324 a prime number?
No, 324 is not a prime number. It is divisible by 2: 324 = 2 × 162.
Is 324 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 √324 ≈ 18.00. If none of them divides 324, it is prime.
- 3
2 divides 324 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 324 = 2^{2} \times 3^{4} \]Testing 324 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 324 ÷ 2 | divides exactly (162) |
| 3 | 324 ÷ 3 | divides exactly (108) |
| 5 | 324 ÷ 5 | leaves 4 |
| 7 | 324 ÷ 7 | leaves 2 |
| 11 | 324 ÷ 11 | leaves 5 |
| 13 | 324 ÷ 13 | leaves 12 |
| 17 | 324 ÷ 17 | leaves 1 |
Questions
Is 324 a prime number?
No, 324 is not a prime number. It is divisible by 2: 324 = 2 × 162.
What is the next prime after 324?
331.
What is the prime number before 324?
317.
What are the factors of 324?
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324.