Is 1199 a prime number?
No, 1199 is not a prime number. It is divisible by 11: 1199 = 11 × 109.
Is 1199 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 √1199 ≈ 34.63. If none of them divides 1199, it is prime.
- 3
11 divides 1199 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 1199 = 11 \times 109 \]
Testing 1199 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 1199 ÷ 2 | leaves 1 |
| 3 | 1199 ÷ 3 | leaves 2 |
| 5 | 1199 ÷ 5 | leaves 4 |
| 7 | 1199 ÷ 7 | leaves 2 |
| 11 | 1199 ÷ 11 | divides exactly (109) |
| 13 | 1199 ÷ 13 | leaves 3 |
| 17 | 1199 ÷ 17 | leaves 9 |
| 19 | 1199 ÷ 19 | leaves 2 |
| 23 | 1199 ÷ 23 | leaves 3 |
| 29 | 1199 ÷ 29 | leaves 10 |
| 31 | 1199 ÷ 31 | leaves 21 |
Questions
Is 1199 a prime number?
No, 1199 is not a prime number. It is divisible by 11: 1199 = 11 × 109.
What is the next prime after 1199?
1201.
What is the prime number before 1199?
1193.
What are the factors of 1199?
1, 11, 109, 1199.