Is 2742 a prime number?
No, 2742 is not a prime number. It is divisible by 2: 2742 = 2 × 1371.
Is 2742 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 √2742 ≈ 52.36. If none of them divides 2742, it is prime.
- 3
2 divides 2742 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 2742 = 2 \times 3 \times 457 \]
Testing 2742 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 2742 ÷ 2 | divides exactly (1371) |
| 3 | 2742 ÷ 3 | divides exactly (914) |
| 5 | 2742 ÷ 5 | leaves 2 |
| 7 | 2742 ÷ 7 | leaves 5 |
| 11 | 2742 ÷ 11 | leaves 3 |
| 13 | 2742 ÷ 13 | leaves 12 |
| 17 | 2742 ÷ 17 | leaves 5 |
| 19 | 2742 ÷ 19 | leaves 6 |
| 23 | 2742 ÷ 23 | leaves 5 |
| 29 | 2742 ÷ 29 | leaves 16 |
| 31 | 2742 ÷ 31 | leaves 14 |
| 37 | 2742 ÷ 37 | leaves 4 |
Questions
Is 2742 a prime number?
No, 2742 is not a prime number. It is divisible by 2: 2742 = 2 × 1371.
What is the next prime after 2742?
2749.
What is the prime number before 2742?
2741.
What are the factors of 2742?
1, 2, 3, 6, 457, 914, 1371, 2742.