Is 1503 a prime number?
No, 1503 is not a prime number. It is divisible by 3: 1503 = 3 × 501.
Is 1503 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 √1503 ≈ 38.77. If none of them divides 1503, it is prime.
- 3
3 divides 1503 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 1503 = 3^{2} \times 167 \]Testing 1503 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 1503 ÷ 2 | leaves 1 |
| 3 | 1503 ÷ 3 | divides exactly (501) |
| 5 | 1503 ÷ 5 | leaves 3 |
| 7 | 1503 ÷ 7 | leaves 5 |
| 11 | 1503 ÷ 11 | leaves 7 |
| 13 | 1503 ÷ 13 | leaves 8 |
| 17 | 1503 ÷ 17 | leaves 7 |
| 19 | 1503 ÷ 19 | leaves 2 |
| 23 | 1503 ÷ 23 | leaves 8 |
| 29 | 1503 ÷ 29 | leaves 24 |
| 31 | 1503 ÷ 31 | leaves 15 |
| 37 | 1503 ÷ 37 | leaves 23 |
Questions
Is 1503 a prime number?
No, 1503 is not a prime number. It is divisible by 3: 1503 = 3 × 501.
What is the next prime after 1503?
1511.
What is the prime number before 1503?
1499.
What are the factors of 1503?
1, 3, 9, 167, 501, 1503.