Is 918 a prime number?
No, 918 is not a prime number. It is divisible by 2: 918 = 2 × 459.
Is 918 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 √918 ≈ 30.30. If none of them divides 918, it is prime.
- 3
2 divides 918 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 918 = 2 \times 3^{3} \times 17 \]Testing 918 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 918 ÷ 2 | divides exactly (459) |
| 3 | 918 ÷ 3 | divides exactly (306) |
| 5 | 918 ÷ 5 | leaves 3 |
| 7 | 918 ÷ 7 | leaves 1 |
| 11 | 918 ÷ 11 | leaves 5 |
| 13 | 918 ÷ 13 | leaves 8 |
| 17 | 918 ÷ 17 | divides exactly (54) |
| 19 | 918 ÷ 19 | leaves 6 |
| 23 | 918 ÷ 23 | leaves 21 |
| 29 | 918 ÷ 29 | leaves 19 |
Questions
Is 918 a prime number?
No, 918 is not a prime number. It is divisible by 2: 918 = 2 × 459.
What is the next prime after 918?
919.
What is the prime number before 918?
911.
What are the factors of 918?
1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918.