Is 2740 a prime number?
No, 2740 is not a prime number. It is divisible by 2: 2740 = 2 × 1370.
Is 2740 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 √2740 ≈ 52.35. If none of them divides 2740, it is prime.
- 3
2 divides 2740 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 2740 = 2^{2} \times 5 \times 137 \]Testing 2740 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 2740 ÷ 2 | divides exactly (1370) |
| 3 | 2740 ÷ 3 | leaves 1 |
| 5 | 2740 ÷ 5 | divides exactly (548) |
| 7 | 2740 ÷ 7 | leaves 3 |
| 11 | 2740 ÷ 11 | leaves 1 |
| 13 | 2740 ÷ 13 | leaves 10 |
| 17 | 2740 ÷ 17 | leaves 3 |
| 19 | 2740 ÷ 19 | leaves 4 |
| 23 | 2740 ÷ 23 | leaves 3 |
| 29 | 2740 ÷ 29 | leaves 14 |
| 31 | 2740 ÷ 31 | leaves 12 |
| 37 | 2740 ÷ 37 | leaves 2 |
Questions
Is 2740 a prime number?
No, 2740 is not a prime number. It is divisible by 2: 2740 = 2 × 1370.
What is the next prime after 2740?
2741.
What is the prime number before 2740?
2731.
What are the factors of 2740?
1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740.