Is 2140 a prime number?
No, 2140 is not a prime number. It is divisible by 2: 2140 = 2 × 1070.
Is 2140 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 √2140 ≈ 46.26. If none of them divides 2140, it is prime.
- 3
2 divides 2140 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 2140 = 2^{2} \times 5 \times 107 \]Testing 2140 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 2140 ÷ 2 | divides exactly (1070) |
| 3 | 2140 ÷ 3 | leaves 1 |
| 5 | 2140 ÷ 5 | divides exactly (428) |
| 7 | 2140 ÷ 7 | leaves 5 |
| 11 | 2140 ÷ 11 | leaves 6 |
| 13 | 2140 ÷ 13 | leaves 8 |
| 17 | 2140 ÷ 17 | leaves 15 |
| 19 | 2140 ÷ 19 | leaves 12 |
| 23 | 2140 ÷ 23 | leaves 1 |
| 29 | 2140 ÷ 29 | leaves 23 |
| 31 | 2140 ÷ 31 | leaves 1 |
| 37 | 2140 ÷ 37 | leaves 31 |
Questions
Is 2140 a prime number?
No, 2140 is not a prime number. It is divisible by 2: 2140 = 2 × 1070.
What is the next prime after 2140?
2141.
What is the prime number before 2140?
2137.
What are the factors of 2140?
1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140.