Is 437 a prime number?
No, 437 is not a prime number. It is divisible by 19: 437 = 19 × 23.
Is 437 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 √437 ≈ 20.90. If none of them divides 437, it is prime.
- 3
19 divides 437 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 437 = 19 \times 23 \]
Testing 437 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 437 ÷ 2 | leaves 1 |
| 3 | 437 ÷ 3 | leaves 2 |
| 5 | 437 ÷ 5 | leaves 2 |
| 7 | 437 ÷ 7 | leaves 3 |
| 11 | 437 ÷ 11 | leaves 8 |
| 13 | 437 ÷ 13 | leaves 8 |
| 17 | 437 ÷ 17 | leaves 12 |
| 19 | 437 ÷ 19 | divides exactly (23) |
Questions
Is 437 a prime number?
No, 437 is not a prime number. It is divisible by 19: 437 = 19 × 23.
What is the next prime after 437?
439.
What is the prime number before 437?
433.
What are the factors of 437?
1, 19, 23, 437.