Is 325 a prime number?
No, 325 is not a prime number. It is divisible by 5: 325 = 5 × 65.
Is 325 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 √325 ≈ 18.03. If none of them divides 325, it is prime.
- 3
5 divides 325 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 325 = 5^{2} \times 13 \]Testing 325 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 325 ÷ 2 | leaves 1 |
| 3 | 325 ÷ 3 | leaves 1 |
| 5 | 325 ÷ 5 | divides exactly (65) |
| 7 | 325 ÷ 7 | leaves 3 |
| 11 | 325 ÷ 11 | leaves 6 |
| 13 | 325 ÷ 13 | divides exactly (25) |
| 17 | 325 ÷ 17 | leaves 2 |
Questions
Is 325 a prime number?
No, 325 is not a prime number. It is divisible by 5: 325 = 5 × 65.
What is the next prime after 325?
331.
What is the prime number before 325?
317.
What are the factors of 325?
1, 5, 13, 25, 65, 325.