Is 439 a prime number?
Yes, 439 is a prime number. Its only factors are 1 and 439.
Is 439 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 √439 ≈ 20.95. If none of them divides 439, it is prime.
- 3
None of them divides 439, so it is prime.
Testing 439 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 439 ÷ 2 | leaves 1 |
| 3 | 439 ÷ 3 | leaves 1 |
| 5 | 439 ÷ 5 | leaves 4 |
| 7 | 439 ÷ 7 | leaves 5 |
| 11 | 439 ÷ 11 | leaves 10 |
| 13 | 439 ÷ 13 | leaves 10 |
| 17 | 439 ÷ 17 | leaves 14 |
| 19 | 439 ÷ 19 | leaves 2 |
Questions
Is 439 a prime number?
Yes, 439 is a prime number. Its only factors are 1 and 439.
What is the next prime after 439?
443.
What is the prime number before 439?
433.
What are the factors of 439?
1, 439.