Is 529 a prime number?
No, 529 is not a prime number. It is divisible by 23: 529 = 23 × 23.
Is 529 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 √529 ≈ 23.00. If none of them divides 529, it is prime.
- 3
23 divides 529 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 529 = 23^{2} \]Testing 529 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 529 ÷ 2 | leaves 1 |
| 3 | 529 ÷ 3 | leaves 1 |
| 5 | 529 ÷ 5 | leaves 4 |
| 7 | 529 ÷ 7 | leaves 4 |
| 11 | 529 ÷ 11 | leaves 1 |
| 13 | 529 ÷ 13 | leaves 9 |
| 17 | 529 ÷ 17 | leaves 2 |
| 19 | 529 ÷ 19 | leaves 16 |
| 23 | 529 ÷ 23 | divides exactly (23) |
Questions
Is 529 a prime number?
No, 529 is not a prime number. It is divisible by 23: 529 = 23 × 23.
What is the next prime after 529?
541.
What is the prime number before 529?
523.
What are the factors of 529?
1, 23, 529.