Is 268 a prime number?
No, 268 is not a prime number. It is divisible by 2: 268 = 2 × 134.
Is 268 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 √268 ≈ 16.37. If none of them divides 268, it is prime.
- 3
2 divides 268 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 268 = 2^{2} \times 67 \]Testing 268 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 268 ÷ 2 | divides exactly (134) |
| 3 | 268 ÷ 3 | leaves 1 |
| 5 | 268 ÷ 5 | leaves 3 |
| 7 | 268 ÷ 7 | leaves 2 |
| 11 | 268 ÷ 11 | leaves 4 |
| 13 | 268 ÷ 13 | leaves 8 |
Questions
Is 268 a prime number?
No, 268 is not a prime number. It is divisible by 2: 268 = 2 × 134.
What is the next prime after 268?
269.
What is the prime number before 268?
263.
What are the factors of 268?
1, 2, 4, 67, 134, 268.