Is 550 a prime number?
No, 550 is not a prime number. It is divisible by 2: 550 = 2 × 275.
Is 550 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 √550 ≈ 23.45. If none of them divides 550, it is prime.
- 3
2 divides 550 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 550 = 2 \times 5^{2} \times 11 \]Testing 550 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 550 ÷ 2 | divides exactly (275) |
| 3 | 550 ÷ 3 | leaves 1 |
| 5 | 550 ÷ 5 | divides exactly (110) |
| 7 | 550 ÷ 7 | leaves 4 |
| 11 | 550 ÷ 11 | divides exactly (50) |
| 13 | 550 ÷ 13 | leaves 4 |
| 17 | 550 ÷ 17 | leaves 6 |
| 19 | 550 ÷ 19 | leaves 18 |
| 23 | 550 ÷ 23 | leaves 21 |
Questions
Is 550 a prime number?
No, 550 is not a prime number. It is divisible by 2: 550 = 2 × 275.
What is the next prime after 550?
557.
What is the prime number before 550?
547.
What are the factors of 550?
1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550.