Is 1189 a prime number?
No, 1189 is not a prime number. It is divisible by 29: 1189 = 29 × 41.
Is 1189 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 √1189 ≈ 34.48. If none of them divides 1189, it is prime.
- 3
29 divides 1189 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 1189 = 29 \times 41 \]
Testing 1189 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 1189 ÷ 2 | leaves 1 |
| 3 | 1189 ÷ 3 | leaves 1 |
| 5 | 1189 ÷ 5 | leaves 4 |
| 7 | 1189 ÷ 7 | leaves 6 |
| 11 | 1189 ÷ 11 | leaves 1 |
| 13 | 1189 ÷ 13 | leaves 6 |
| 17 | 1189 ÷ 17 | leaves 16 |
| 19 | 1189 ÷ 19 | leaves 11 |
| 23 | 1189 ÷ 23 | leaves 16 |
| 29 | 1189 ÷ 29 | divides exactly (41) |
| 31 | 1189 ÷ 31 | leaves 11 |
Questions
Is 1189 a prime number?
No, 1189 is not a prime number. It is divisible by 29: 1189 = 29 × 41.
What is the next prime after 1189?
1193.
What is the prime number before 1189?
1187.
What are the factors of 1189?
1, 29, 41, 1189.